$144+ Cheap flights from Billings to Seattle (BIL - SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SEA
Oct 24 — Oct 311
Round-trip
1 adult, Economy
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Find cheap flights from Billings to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Billings Logan Intl to Seattle/Tacoma Intl are usually found in March or April, booked 50 days in advance, depart on a Thursday or Saturday and return on a Tuesday
Cheap flight deals from Billings to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Billings to SeattleExplore the most affordable flight options available from Billings to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
Explore the most affordable flight options available from Billings to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 24, 2026.
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/242:28 pm -
1 stop7h 47m
Sat 10/3112:45 pm -
1 stop7h 29m
Deal found 9/23![United Airlines logo]()
$179
This Expedia deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:12 pm -
Nonstop2h 13m
Mon 11/97:50 pm -
Nonstop1h 53m
Deal found 9/22![Alaska Airlines logo]()
$237
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:57 pm -
1 stop6h 02m
Fri 10/305:05 am -
1 stop7h 24m
Deal found 9/23![United Airlines logo]()
$257
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/15:55 pm -
1 stop6h 20m
Wed 11/43:49 pm -
1 stop5h 41m
Deal found 9/23![United Airlines logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:41 am -
Nonstop2h 09m
Sat 10/248:56 pm -
Nonstop1h 54m
Deal found 9/20![Alaska Airlines logo]()
$287
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/222:28 pm -
1 stop7h 47m
Tue 10/275:05 am -
1 stop7h 24m
Deal found 9/23![United Airlines logo]()
$292
This Orbitz deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:12 pm -
Nonstop2h 13m
Thu 11/198:20 am -
Nonstop1h 55m
Deal found 9/21![Alaska Airlines logo]()
$297
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/242:28 pm -
1 stop7h 47m
Mon 11/23:49 pm -
1 stop5h 41m
Deal found 9/23![United Airlines logo]()
$300
This Orbitz deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/412:04 pm -
Nonstop2h 20m
Sat 12/128:30 am -
Nonstop1h 54m
Deal found 9/22![Alaska Airlines logo]()
$302
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:58 pm -
1 stop7h 04m
Thu 10/2911:05 am -
1 stop5h 44m
Deal found 9/23![Delta logo]()
$312
Best flights from Billings to SeattleDiscover carefully curated flight deals from Billings to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
Discover carefully curated flight deals from Billings to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:44 pm -
2 stops22h 32m
Sat 10/248:56 pm -
Nonstop1h 54m
Deal found 9/18![Alaska Airlines logo]()
$373
This Alaska Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:32 pm -
Nonstop2h 13m
Mon 10/269:55 pm -
2 stops16h 09m
Deal found 9/22![Alaska Airlines logo]()
$412
This Alaska Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/243:39 pm -
1 stop4h 01m
Tue 12/298:19 am -
Nonstop1h 56m
Deal found 9/22![Alaska Airlines logo]()
$417
This Alaska Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:41 am -
Nonstop2h 09m
Mon 10/269:55 pm -
2 stops16h 09m
Deal found 9/22![Alaska Airlines logo]()
$442
This Alaska Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:41 am -
Nonstop2h 09m
Wed 10/148:56 pm -
Nonstop1h 54m
Deal found 9/20![Alaska Airlines logo]()
$444
This Alaska Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:41 am -
Nonstop2h 09m
Tue 10/1310:30 am -
1 stop3h 34m
Deal found 9/21![Alaska Airlines logo]()
$447
This Alaska Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/33:32 pm -
1 stop4h 02m
Thu 12/249:04 pm -
Nonstop1h 54m
Deal found 9/19![Alaska Airlines logo]()
$452
This Alaska Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/67:01 am -
Nonstop2h 22m
Fri 12/258:19 am -
Nonstop1h 56m
Deal found 9/19![Alaska Airlines logo]()
$462
Last-minute flights from Billings to SeattleDiscover last-minute flight deals from Billings to Seattle. Data last updated September 24, 2026 and is based on user searches.
Discover last-minute flight deals from Billings to Seattle. Data last updated September 24, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:41 am -
Nonstop2h 09m
Sat 10/248:56 pm -
Nonstop1h 54m
Deal found 9/20![Alaska Airlines logo]()
$287
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:00 am -
1 stop6h 01m
Sat 10/245:00 am -
1 stop7h 14m
Deal found 9/23![United Airlines logo]()
$335
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/222:28 pm -
1 stop7h 47m
Tue 10/275:05 am -
1 stop7h 24m
Deal found 9/23![United Airlines logo]()
$292
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:57 pm -
1 stop6h 02m
Fri 10/305:05 am -
1 stop7h 24m
Deal found 9/23![United Airlines logo]()
$257
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected ” under the list of providers to see comparable flight deals.
Sat 10/242:28 pm -
1 stop7h 47m
Sat 10/3112:45 pm -
1 stop7h 29m
Deal found 9/23![United Airlines logo]()
$179
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/242:28 pm -
1 stop7h 47m
Mon 11/23:49 pm -
1 stop5h 41m
Deal found 9/23![United Airlines logo]()
$300
This Priceline deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:41 am -
Nonstop2h 09m
Sat 10/318:25 am -
Nonstop2h 00m
Deal found 9/23![Alaska Airlines logo]()
$317
This Travelocity deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/243:44 pm -
1 stop4h 05m
Mon 11/21:40 pm -
Nonstop1h 52m
Deal found 9/23![Alaska Airlines logo]()
$332
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:58 pm -
1 stop7h 04m
Thu 10/2911:05 am -
1 stop5h 44m
Deal found 9/23![Delta logo]()
$312
One-way flights from Billings to SeattleSearch for one-way flight options from Billings to Seattle. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
Search for one-way flight options from Billings to Seattle. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:18 am -
Nonstop2h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Alaska Airlines logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:59 pm -
1 stop16h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$147
This Priceline deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:12 pm -
Nonstop2h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Alaska Airlines logo]()
$149
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:29 pm -
1 stop4h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Delta logo]()
$154
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:57 pm -
1 stop6h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![United Airlines logo]()
$159
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/214:15 pm -
1 stop8h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![United Airlines logo]()
$172
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/124:00 pm -
1 stop8h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![United Airlines logo]()
$181
This Priceline deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:32 pm -
Nonstop2h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Alaska Airlines logo]()
$204
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:57 pm -
1 stop6h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![United Airlines logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/69:47 pm -
2 stops18h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Multiple Airlines logo]()
$218
Find flight deals from Billings to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $179 (United Airlines) |
One-way from | $144 (Alaska Airlines) |
Popular in | October |
Cheapest in | March |
Average price | $338 |
Good round-trip deal | $348 or less |
Good one-way deal | $205 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Billings to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 24, 2026.
Use the filters below to find and compare flights from Billings to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BillingsSeattle
BIL Billings Logan Intl - SEA Seattle/Tacoma Intl
BILSEA
Billings Logan Intl
Sat 11/7
6:29 pm-10:05 pm
1 stop4h 36m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$154
BillingsSeattle
BIL Billings Logan Intl - SEA Seattle/Tacoma Intl
BILSEA
Billings Logan Intl
Fri 10/23
5:57 pm-10:59 pm
1 stop6h 02m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$159
BillingsSeattle
BIL Billings Logan Intl - SEA Seattle/Tacoma Intl
BILSEA
Billings Logan Intl
Sun 12/6
4:04 pm-9:21 pm
1 stop6h 17m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$159
BillingsSeattle
BIL Billings Logan Intl - SEA Seattle/Tacoma Intl
BILSEA
Billings Logan Intl
Fri 12/11
6:21 pm-12:05 am
1 stop6h 44m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$159
BillingsSeattle
BIL Billings Logan Intl - SEA Seattle/Tacoma Intl
BILSEA
Billings Logan Intl
Sun 10/25
5:00 am-9:47 am
1 stop5h 47m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$159
BillingsSeattle
BIL Billings Logan Intl - SEA Seattle/Tacoma Intl
BILSEA
Billings Logan Intl
Thu 11/12
4:00 pm-11:15 pm
1 stop8h 15m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$181
BillingsSeattle
BIL Billings Logan Intl - SEA Seattle/Tacoma Intl
BILSEA
Billings Logan Intl
Mon 10/26
7:59 pm-6:54 pm
2 stops23h 55m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$189
BillingsSeattle
BIL Billings Logan Intl - SEA Seattle/Tacoma Intl
BILSEA
Billings Logan Intl
Wed 10/7
5:57 pm-10:59 pm
1 stop6h 02m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$211
Quickest round-trip
BillingsSeattle
BIL Billings Logan Intl - SEA Seattle/Tacoma Intl
BILSEA
Billings Logan Intl
Sun 10/11
7:41 am-8:50 am
Nonstop2h 09m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$234
BillingsSeattle
BIL Billings Logan Intl - SEA Seattle/Tacoma Intl
BILSEA
Billings Logan Intl
Mon 10/26
7:32 pm-8:45 pm
Nonstop2h 13m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$239
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Billings to Seattle
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Billings to Seattle in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Billings-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Billings-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Billings-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Billings-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Billings-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Billings to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Billings with our price prediction graph.
BIL-SEA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Billings to Seattle
Prices
Airlines
How far ahead should I book a flight from Billings to Seattle?
To ensure you get the cheapest price possible for a flight from Billings to Seattle, you should look to book at least 49 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Billings to Seattle?
Currently, March is the cheapest month in which you can book a flight from Billings to Seattle (average of $272). Flying from Billings to Seattle in October is currently the most expensive (average of $378). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from BIL to SEA?
Find hourly flight availability from Billings to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 24, 2026.
One of the essential ways to save on airfare from Billings to Seattle is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 18% on airfare.
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated September 24, 2026.
Get a feel of what it's like to fly with Alaska Airlines from Billings to Seattle by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Food
7.0
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Comfort
7.8
Food
7.0
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Related info for your journey
Find useful and relevant information for your journey from Billings to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ellensburg
Issaquah
Marysville
Ocean Shores
Lakewood
Fife
Poulsbo
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Billings and Seattle flights
Browse other Billings and Seattle flight options. Last updated on September 24, 2026.
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Top airline flying from Billings to Seattle
Discover the top airline that operate flights from Billings to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$157 | Average$336 | FlexibilityNo cancel fee | On-time75% |