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SEA to HLN

Seattle to Helena Flights

Compare fares, departure times, stops and baggage details for this route, then open the full search when you are ready to check current availability and complete booking.

Fare checked before payment All fees shown upfront Transparent cancellation policy 24×7 booking support
Lowest fare₹18,330United Airlines
Fastest1h 35mgate to gate
Options found56flights on this route
Find your flight SEA HLN

Available Flights & Fares

Compare fares, timings and baggage. Pick the flight that suits your trip.

Prices in INR
56 flight options

Fares are checked again before payment.

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United Airlines
United Airlines
UA-757
05:05
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
7H :35 M
1 Stop
DEN · 2h 49m Denver (DEN), United States
13:40
2026-10-30
Helena (HLN)Helena
Non Refundable 8 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1128
05:30
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
5H :58 M
1 Stop
SLC · 2h 15m Salt Lake City (SLC), United States
12:28
2026-10-30
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-953
23:50
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
11H :38 M
2 Stops
MSP · 2h 42m Minneapolis (MSP), United States
SLC · 1h 08m Salt Lake City (SLC), United States
12:28
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-949
18:15
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
17H :13 M
2 Stops
MSP · 8h 08m Minneapolis (MSP), United States
SLC · 1h 08m Salt Lake City (SLC), United States
12:28
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-953
23:50
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
21H :39 M
2 Stops
MSP · 13h 04m Minneapolis (MSP), United States
SLC · 0h 56m Salt Lake City (SLC), United States
22:29
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-870
17:55
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
17H :33 M
2 Stops
DFW · 8h 13m Dallas (DFW), United States
SLC · 0h 35m Salt Lake City (SLC), United States
12:28
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-1534
12:45
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
7H :46 M
1 Stop
DEN · 2h 54m Denver (DEN), United States
21:31
2026-10-30
Helena (HLN)Helena
Non Refundable 5 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-725
15:49
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
20H :51 M
1 Stop
DEN · 16h 01m Denver (DEN), United States
13:40
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-725
15:49
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
28H :42 M
1 Stop
DEN · 23h 50m Denver (DEN), United States
21:31
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-1218
19:04
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
17H :36 M
1 Stop
DEN · 12h 46m Denver (DEN), United States
13:40
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
United Airlines
United Airlines
UA-1218
19:04
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
25H :27 M
1 Stop
DEN · 20h 35m Denver (DEN), United States
21:31
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1128
05:30
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
15H :54 M
1 Stop
SLC · 12h 20m Salt Lake City (SLC), United States
22:24
2026-10-30
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1165
17:55
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
17H :33 M
1 Stop
SLC · 13h 46m Salt Lake City (SLC), United States
12:28
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1165
17:55
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
27H :34 M
1 Stop
SLC · 23h 56m Salt Lake City (SLC), United States
22:29
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-2512
21:35
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
13H :53 M
2 Stops
LAX · 5h 09m Los Angeles (LAX), United States
SLC · 2h 22m Salt Lake City (SLC), United States
12:28
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-2512
21:35
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
23H :54 M
2 Stops
LAX · 16h 44m Los Angeles (LAX), United States
SLC · 1h 01m Salt Lake City (SLC), United States
22:29
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1628
07:32
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
13H :52 M
2 Stops
LAX · 6h 40m Los Angeles (LAX), United States
SLC · 0h 56m Salt Lake City (SLC), United States
22:24
2026-10-30
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-2858
07:15
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
14H :09 M
1 Stop
SLC · 10h 23m Salt Lake City (SLC), United States
22:24
2026-10-30
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1120
13:30
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
7H :54 M
1 Stop
SLC · 4h 12m Salt Lake City (SLC), United States
22:24
2026-10-30
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-1120
13:30
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
21H :58 M
1 Stop
SLC · 18h 07m Salt Lake City (SLC), United States
12:28
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-2914
12:30
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
22H :58 M
2 Stops
LAX · 14h 15m Los Angeles (LAX), United States
SLC · 2h 22m Salt Lake City (SLC), United States
12:28
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-2830
14:30
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
20H :58 M
2 Stops
LAX · 14h 05m Los Angeles (LAX), United States
SLC · 0h 35m Salt Lake City (SLC), United States
12:28
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces

Recommended hotels in Helena

Stay options near the arrival city for the same travel date.

Search hotels
Delta Air Lines
Delta Air Lines
DL-2861
17:45
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
17H :43 M
2 Stops
LAX · 10h 45m Los Angeles (LAX), United States
SLC · 0h 35m Salt Lake City (SLC), United States
12:28
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-3820
18:55
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
16H :33 M
2 Stops
PDX · 9h 35m Portland (PDX), United States
SLC · 2h 25m Salt Lake City (SLC), United States
12:28
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-3820
18:55
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
26H :34 M
2 Stops
PDX · 21h 15m Portland (PDX), United States
SLC · 0h 50m Salt Lake City (SLC), United States
22:29
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Delta Air Lines
Delta Air Lines
DL-3997
20:55
2026-10-30
SEATTLE (SEA)Seattle/tacoma International
14H :33 M
2 Stops
PDX · 7h 39m Portland (PDX), United States
SLC · 2h 25m Salt Lake City (SLC), United States
12:28
2026-10-31
Helena (HLN)Helena
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
No flights match the selected filters. Clear filters or open full search.

Airfare Highlights

From flights departing on Fri, 30 Oct 2026.

Lowest fare ₹18,330 United Airlines 05:05
Earliest departure ₹18,330 United Airlines 05:05
Shortest duration ₹38,546 Alaska Airlines 14:14
Night 00:00-05:59 ₹18,330 United Airlines at 05:05
Morning 06:00-11:59 ₹35,670 Delta Air Lines at 07:32
Afternoon 12:00-17:59 ₹29,596 Delta Air Lines at 17:55
Evening 18:00-23:59 ₹28,573 Delta Air Lines at 23:50

Departure & Arrival Airport Details

Seattle (SEA)

Seattle/tacoma International

United States

GMT -8

Latitude: 47.449001

Longitude: -122.308998

Helena (HLN)

Helena

United States

GMT -7

Latitude: 46.6068000793457

Longitude: -111.98300170898438

Distance: Seattle (SEA), United States to Helena (HLN), United States - 787.65 km
Flights shown for 30 Oct 2026. View all flights opens the complete search result.
Route forecast

Weather in Seattle and Helena

Live forecast for both cities, 12 Oct to 15 Oct.

Departure city

Seattle

Thu, 15 Oct
17°CClear skyLow 7°
79% humidity 4 km/h wind
  • Mon13° / 8°
  • Tue13° / 7°
  • Wed16° / 7°
Arrival city

Helena

Thu, 15 Oct
4°CCloudyLow 1°
93% humidity 5 km/h wind 3 mm rain
  • Mon1° / 0°
  • Tue0° / -1°
  • Wed1° / 0°

Forecast data from MET Norway, CC BY 4.0.

Smart travel dates

Holidays and peak dates for Helena

Fares and hotel rates usually run higher around these dates. Booking earlier or moving your trip by a day or two often costs less.

Busiest periods: Summer travel (15 Jun – 31 Aug), Holiday season (18 Dec – 02 Jan).

  • 12OctColumbus DayMonday
  • 12OctColumbus DayMonday
  • 12OctIndigenous Peoples' DayMonday
  • 11NovVeterans DayWednesday
  • 26NovThanksgiving DayThursday
  • 25DecChristmas DayFriday

Fixed-date national holidays. Festivals that follow the lunar calendar shift each year and are not listed here, so check the exact date for your travel year.

Compare your journey

How to travel Seattle to Helena

Ways to make this trip that you can book on FlyX, compared by price and journey time.

OptionFromJourney timeAvailabilityAction
Non-stop flight Fastest₹38,5461h 35m1 flight
Connecting flight₹18,330Longer, includes a stop55 options

Air distance is about 788 km. 3 airlines operate this route.

Road distance and coach duration are approximate estimates from the air distance, not a timetable.

Airlines flying from Seattle to Helena

Compare fares, stops, baggage and refundability across the airlines flying this route.

Delta Air Lines Flights

from ₹20,64730 flights
Fares from
₹20,647
Non-stop
None in these results
Departures
30 in the list above

United Airlines Flights

from ₹18,33025 flights
Fares from
₹18,330
Non-stop
None in these results
Departures
25 in the list above

Route Overview & Flight Facts

Fastest flight duration1h 35m · Alaska Airlines
First departure of the day05:05 · United Airlines
Last departure of the day23:50 · Delta Air Lines
Flight options found56
Direct / non-stop options1
Airport codesSeattle–SEA, Helena–HLN

Fares and timings are indicative. The exact price is confirmed with the airline when you search.

Flight Schedule, Timings & Airfare Insights

Daily Flight Schedule & Travel Duration

The search for Fri, 30 Oct found 56 flight options, 1 of them non-stop. The first flight leaves around 05:05 and the last around 23:50. The fastest flight takes about 1h 35m.

Morning vs Evening Departure Fares

Lowest fare by departure window: Night from ₹18,330, Evening from ₹28,573, Afternoon from ₹29,596, Morning from ₹35,670. These observations do not predict the cheapest departure window on other dates.

Cheapest Airfare & Best Time to Book

Search your travel dates to compare current fares. Prices change with airline seat availability.

One-Way vs Round-Trip Fare Comparison

Compare the complete cost and conditions of both options for your dates. A round-trip can have different fare and change rules from two one-way tickets. One booking may contain multiple airline PNRs; confirm baggage transfer and connection protection for separate tickets.

Online Web Check-In & Boarding Pass

Check the operating airline’s opening time and check-in deadline for each sector. Seat charges and availability depend on your fare. Use the airline reference and the links on Web Check-in.

How to Book Cheap Flights on FlyX

  1. 1
    Enter your travel details

    Choose one-way or round-trip, pick your dates and travellers in the search form above.

  2. 2
    Compare search results

    Sort or filter the Seattle–Helena results by price, departure time, stops and airline.

  3. 3
    Open the fare choices

    Check baggage allowance and refundability for each fare type before continuing.

  4. 4
    Review the final price

    Review the refreshed supplier fare, coupon saving and selected payment-method fee before you pay.

  5. 5
    Pay securely

    UPI, cards, net banking and wallets supported; payment and ticket issuance have separate statuses. If issuance is pending, follow the booking status; the confirmed ticket is sent after issuance.

Why Book Your Flight with FlyX?

Compare the available Seattle to Helena options by total price, stops, baggage and fare conditions. Search your dates for current availability, then review traveller details and the final price before paying.

Payment confirmation and ticket issuance are separate steps. If your booking is awaiting a PNR or ticket, follow its status and contact FlyX support when you need help. Your issued ticket contains the airline reference and itinerary. Change and cancellation charges depend on the purchased fare and any separately disclosed service fee.

Fare checked before paymentCoupon eligibility checkedBooking status trackingBooking support

Exclusive Flight Offers & Promo Coupons

Coupon codeOfferMax saving
FLYX20Up to 20% Off on Flights₹1,500

Check coupon eligibility and the final discount on the review page before you pay. View full terms.

Frequently Asked Questions

Is it worth booking Seattle to Helena flights in advance?

There is no guaranteed cheapest booking window. Compare your planned dates early, check nearby dates and consider baggage, connection time and change conditions as well as price. On the Seattle to Helena dates shown on this page, the lowest fare is on a Friday at ₹18,330. This can change from week to week.

How far is Seattle from Helena by air?

The direct air distance between Seattle (SEA) and Helena (HLN) is about 788 km. Actual flight time varies with the routing the airline files and with winds on the day.

Are there non-stop flights from SEA to HLN?

Yes. 1 non-stop flight is listed on this page for Seattle to Helena. Use the Stops filter to see only those.

Which airlines fly Seattle to Helena?

Delta Air Lines and United Airlines are listed on this route for the dates shown here. Fares, baggage allowance and refund rules differ by airline and by fare type, so compare the fare conditions and not only the headline price.

How long is the flight from Seattle to Helena?

The quickest non-stop Seattle to Helena flight on this page takes about 1h 35m. Journeys with a stop take longer, since the total includes the layover.

What is the cheapest Seattle to Helena flight fare?

The lowest Seattle to Helena fare on this page is ₹18,330. Fares on the same dates run up to ₹71,624, depending on airline, timing and fare type. Airline prices change often, so search your dates for the current fare.

What time do Seattle to Helena flights depart?

On the dates shown here, the first departure is around 05:05 and the last around 23:50, local time at Seattle. Use the departure-time filter on the results above to narrow to a morning, afternoon or evening slot.

Why does the price change after clicking Book Now?

Airline seat inventory and fares change continuously. Selecting Book Now runs a live fare verification with the airline so the price you approve is the price you pay. If it has moved, you see the new figure before any payment.

Before you book this route

Check the airport codes SEA–HLN, local departure and arrival dates, and every connecting airport. Connections can have different document and baggage requirements from your final destination.

Where these fares come from

The fares, durations, stops and baggage shown here come from real airline search results for this route. They are examples for the dates on this page, not a full timetable and not a locked price. Run a search to see what is available for your own dates.

Fares shown are for departures on .

Check official travel requirements

Confirm passport, visa and transit rules for your nationality and full itinerary with the relevant government and operating airline. IATA travel-document information explains why requirements vary.

For payment, ticket issuance or a change request, see FlyX support. About FlyX.

United States travel guide for Indian travellers

Planning more than the flight? Our United States guide covers the visa process for Indian passport holders, best time to go, how long to plan for, and which places are worth the days you have. Long-haul city breaks and national parks.

Read the United States travel guide

What to Expect When Booking Your Flight

The SEA to HLN cards above show selected flight options. Airline prices and seat availability can move quickly, so the final fare is rechecked in the booking flow.

Approx route distance: 787.65 km.

Before you book

Compare nearby dates

The date strip opens the complete search result for the route and selected date.

Use filters

Shortlist by price, stops, departure time and refundable fare preference.

Check fare choices

Continue to Booking opens the verified fare choices, including baggage and refundability, before review.

Lowest Seattle to Helena airfare, in 30 days and in 90 days

Cheapest FareFareDateAirlineDeparture
Lowest Airfare ₹18,330 30/10/2026 United Airlines 05:05
Cheapest Airfare Within 30 Days ₹17,963 07/11/2026 United Airlines 05:05
Cheapest Airfare Within 90 Days ₹17,414 06/01/2027 United Airlines 05:05

Book Seattle to Helena Flight Tickets on FlyX

FlyX lists each Seattle to Helena flight in these results with its fare, departure time, stops, layover airport and baggage, so you can compare air tickets side by side. To find a cheap ticket, sort by price and check what baggage the fare includes. The fare is checked with the airline again before you pay.

Seattle to Helena Flight Distance, Duration and Time

The aerial distance between Seattle and Helena is about 788 KM. In these results, journey times range from 1h 35m to 31h 15m. Flights with a layover take longer because the total includes the connection time.

Seattle to Helena Flight Schedule and Timing

The search for these dates returned 56 flight options, 1 of them non-stop. The first departure from Seattle is at 05:05 and the last is at 23:50. Flights leave from Seattle/tacoma International and land at Helena.

Flight Route Details & Analysis

Flight DetailsInformation
RouteSeattle to Helena
Aerial Distance788 KM
Flight Duration1h 35m - 31h 15m
Airport CodesSeattle - SEA, Helena - HLN
Total Flights Available56 flights1 direct55 with layovers
First Flight DepartureDeparts at 05:05
Last Flight DepartureDeparts at 23:50
Early Morning Flights (12 AM - 8 AM)7 flights0 direct7 with layovers
Morning Flights (8 AM - 12 PM)9 flights0 direct9 with layovers
Afternoon Flights (12 PM - 4 PM)17 flights1 direct16 with layovers
Evening Flights (4 PM - 8 PM)15 flights0 direct15 with layovers
Night Flights (8 PM - 12 AM)8 flights0 direct8 with layovers

Airport Information & Terminals

SEA: Seattle-Tacoma International Airport. Sea-Tac connects to downtown by light rail, while cabs are useful for Bellevue, Redmond or late-night arrivals. Rain and freeway traffic should be part of the plan.

HLN: Helena airport. Helena airport transfer should be matched to the exact hotel, suburb or meeting area. Rail can work well for light luggage, but late arrivals, winter weather and family baggage often make a direct cab or booked transfer easier.

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