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.
BILSEASat, 03 Oct
Fare checked before payment No hidden charges Transparent cancellation policy 24×7 booking support
Lowest fareUS$223Delta Air Lines
Fastest2h 9mgate to gate
Options found44flights on this route
Find your flightBIL → SEA
Available Flights & Fares
Compare fares, timings and baggage. Pick the flight that suits your trip.
Prices in USD
44 flight options
Fares are checked again before payment.
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United Airlines
UA-372
07:00
2026-10-03
Billings (BIL)Billings
7H :21 M
1 Stop
DEN
· 2h 35m Denver (DEN), United States
13:21
2026-10-03
SEATTLE (SEA)Seattle/tacoma International
Non Refundable 6 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Type
Non Refundable
Fare Type
Publish
0 Pieces 1 Pieces
$400
Flight DetailsBIL to SEA - 7H :21 M
Baggage InfoCheck-in 0 Pieces - Cabin 1 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
United Airlines
UA-5463
10:30
2026-10-03
Billings (BIL)Billings
9H :59 M
2 Stops
DEN
· 1h 04m Denver (DEN), United States
LAX
· 1h 27m Los Angeles (LAX), United States
19:29
2026-10-03
SEATTLE (SEA)Seattle/tacoma International
Non Refundable 4 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Type
Non Refundable
Fare Type
Publish
0 Pieces 1 Pieces
$405
Flight DetailsBIL to SEA - 9H :59 M
Baggage InfoCheck-in 0 Pieces - Cabin 1 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
Type
Non Refundable
Fare Type
AirLine Private
0 Pieces 1 Pieces
$1,674
Flight DetailsBIL to SEA - 9H :59 M
Baggage InfoCheck-in 0 Pieces - Cabin 1 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
Delta Air Lines
DL-1360
05:20
2026-10-03
Billings (BIL)Billings
12H :24 M
2 Stops
SLC
· 0h 59m Salt Lake City (SLC), United States
LAX
· 5h 12m Los Angeles (LAX), United States
16:44
2026-10-03
SEATTLE (SEA)Seattle/tacoma International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Type
Non Refundable
Fare Type
Publish
0 Pieces 1 Pieces
$424
Flight DetailsBIL to SEA - 12H :24 M
Baggage InfoCheck-in 0 Pieces - Cabin 1 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
Delta Air Lines
DL-1360
05:20
2026-10-03
Billings (BIL)Billings
16H :19 M
2 Stops
SLC
· 0h 59m Salt Lake City (SLC), United States
LAX
· 9h 07m Los Angeles (LAX), United States
20:39
2026-10-03
SEATTLE (SEA)Seattle/tacoma International
Non Refundable 9 Seat Left Economy
Check-in: 0 PiecesCabin: 1 Pieces
Type
Non Refundable
Fare Type
Publish
0 Pieces 1 Pieces
$424
Flight DetailsBIL to SEA - 16H :19 M
Baggage InfoCheck-in 0 Pieces - Cabin 1 Pieces
Fare RulesNon-refundable fare. Final rules are verified before booking.
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Today's Airfare Highlights
Selected flight highlights for 03 Oct 2026.
Lowest fare$223Delta Air Lines18:25
Earliest departure$239United Airlines05:00
Shortest duration$340Alaska Airlines07:41
Night
00:00-05:59
$239United Airlines at 05:00Morning
06:00-11:59
$319United Airlines at 10:30Afternoon
12:00-17:59
$239United Airlines at 14:28Evening
18:00-23:59
$223Delta Air Lines at 18:25
Departure & Arrival Airport Details
Billings (BIL)
Billings
United States
GMT -7
Latitude: 45.807701110839844
Longitude: -108.54299926757812
Seattle (SEA)
Seattle/tacoma International
United States
GMT -8
Latitude: 47.449001
Longitude: -122.308998
Distance: Billings (BIL), United States to Seattle (SEA), United States - 1,065.43 km
Flights shown for 03 Oct 2026. View all flights opens the complete search result.
Fares and hotel rates usually run higher around these dates. Booking earlier — or shifting a day or two — often costs less.
Busiest periods: Summer travel (15 Jun – 31 Aug), Holiday season (18 Dec – 02 Jan).
12OctColumbus DayMonday · in 30 daysPeak
12OctColumbus DayMonday · in 30 daysPeak
12OctIndigenous Peoples' DayMonday · in 30 daysPeak
11NovVeterans DayWednesday · in 60 days
26NovThanksgiving DayThursday · in 75 days
25DecChristmas DayFriday · in 104 days
Fixed-date national holidays. Festivals that follow the lunar calendar shift each year and are not listed here — check the exact date for your travel year.
Compare your journey
How to travel Billings to Seattle
Every option we can actually book for you, compared on price and journey time.
Connecting flight₹21,311Longer — includes a stop41 options
Air distance is about 1,065 km. 4 airlines operate this route.
Road distance and coach duration are approximate estimates from the air distance, not a timetable.
Airlines flying from Billings to Seattle
Compare fares, stops, baggage and refundability across the airlines flying this route.
UN
United Airlines Flights
from $23918 flights
Fares from
$239
Non-stop
None in these results
Departures
18 — compare timings in the list above
AL
Alaska Airlines Flights
from $27513 flights
Fares from
$275
Non-stop
3 in these results
Departures
13 — compare timings in the list above
DE
Delta Air Lines Flights
from $22310 flights
Fares from
$223
Non-stop
None in these results
Departures
10 — compare timings in the list above
AM
American Airlines Flights
from $3383 flights
Fares from
$338
Non-stop
None in these results
Departures
3 — compare timings in the list above
Route Overview & Flight Facts
Fastest flight duration
2h 9m · Alaska Airlines
First departure of the day
05:00 · United Airlines
Last departure of the day
19:51 · Alaska Airlines
Options in this snapshot
44
Direct / non-stop options
3
Airport codes
Billings–BIL, Seattle–SEA
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
Around 44 flights appear in the dated route snapshot, including 3 non-stop options. Departures run through the day — the first flight leaves around 05:00 and the last around 19:51. The fastest flight takes about 2h 9m.
Morning vs Evening Departure Fares
Lowest fare by departure window: Evening from $223, Night from $239, Afternoon from $239, Morning from $319. 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 update continuously with airline inventory.
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
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2
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Sort or filter the Billings–Seattle results by price, departure time, stops and airline.
3
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4
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5
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Why Book Your Flight with FlyX?
Compare the available Billings to Seattle 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.
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Frequently Asked Questions
Is it worth booking Billings to Seattle 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. Across the dates currently loaded for Billings to Seattle, Saturday shows the lowest fare at $223. That is an observed snapshot for these dates, not a rule that holds every week.
How far is Billings from Seattle by air?
The direct air distance between Billings (BIL) and Seattle (SEA) is about 1,065 km. Actual flight time varies with the routing the airline files and with winds on the day.
Are there non-stop flights from BIL to SEA?
Yes. 3 non-stop flights are showing on Billings to Seattle for the dates currently loaded. Use the Stops filter to see only those.
Which airlines fly Billings to Seattle?
United Airlines, Alaska Airlines, Delta Air Lines and American Airlines are showing on this route for the dates currently loaded. 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 Billings to Seattle?
The quickest non-stop Billings to Seattle flight currently loaded takes about 2h 9m. Across the non-stop options showing, block time ranges from 2h 9m to 2h 13m. Journeys with a stop take longer, since the total includes the layover.
What is the cheapest Billings to Seattle flight fare?
The lowest fare showing on Billings to Seattle for the dates currently loaded is $223. Fares on the same dates run up to $689, depending on airline, timing and fare type. Airline pricing moves continuously, so treat this as a dated observation rather than a fixed price.
What time do Billings to Seattle flights depart?
For the dates currently loaded the first departure is around 05:00 and the last is around 19:51, local time at Billings. 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 BIL–SEA, 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.
Last checked .
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.
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.
The BIL to SEA 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: 1,065.43 km.
Before you book
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Lowest Billings to Seattle airfare today, in 30 days and in 90 days
Cheapest Fare
Fare
Date
Airline
Departure
Lowest Airfare Today
$223
03/10/2026
Delta Air Lines
18:25
Cheapest Airfare Within 30 Days
$219
12/10/2026
Delta Air Lines
18:25
Cheapest Airfare Within 90 Days
$212
11/12/2026
Delta Air Lines
18:25
Book Billings to Seattle Flight Tickets on FlyX
Planning to fly from Billings to Seattle? FlyX lets you compare flight rates, airline timings, layovers, and baggage allowances all in one simple list. From quick non-stop routes to flexible connecting options, finding and booking cheap air tickets has never been easier.
Billings to Seattle Flight Distance, Duration and Time
The aerial distance between Billings and Seattle is approximately 1,065 KM. The flight duration ranges from 2H :09 M up to 19H :55 M depending on whether you book a non-stop flight or a connecting schedule with layovers.
Billings to Seattle Flight Schedule and Timing
Around 44 flights operate on this route, providing plenty of choices for your travel window. The earliest morning flight departs from Billings at 05:00, while the last night flight leaves at 19:51. Flights depart from Billings and land at Seattle/tacoma International.
Flight Route Details & Analysis
Flight Details
Information
Route
Billings to Seattle
Aerial Distance
1,065 KM
Flight Duration
2H :09 M - 19H :55 M
Airport Codes
Billings - BIL, Seattle - SEA
Total Flights Available
44 flights (3 direct)
First Flight Departure
Departs at 05:00
Last Flight Departure
Departs at 19:51
Early Morning Flights (12 AM - 8 AM)
21 direct/indirect flights
Morning Flights (8 AM - 12 PM)
5 direct/indirect flights
Afternoon Flights (12 PM - 4 PM)
16 direct/indirect flights
Evening Flights (4 PM - 8 PM)
2 direct/indirect flights
Night Flights (8 PM - 12 AM)
0 direct/indirect flights
Airport Information & Terminals
BIL: Billings airport. Billings 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.
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.
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