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$110+ Cheap flights from Billings to Seattle (BIL - SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SEA
Aug 25 — Sep 11
Tue 8/25
Tue 9/1
1 adult, Economy
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Cheapflights Tip: The best prices from Billings Logan Intl to Seattle/Tacoma Intl are usually found in September or March, booked 50 days in advance, depart on a Thursday or Friday and return on a Tuesday

Cheap flight deals from Billings to Seattle

Cheapest flights from Billings to Seattle
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 July 26, 2026.

This SmartFares deal was found by Cheapflights users on 7/22. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:14 am
BIL
-
SEA
Nonstop2h 06m
Alaska Airlines
Sat 9/128:35 am
SEA
-
BIL
Nonstop2h 05m
Alaska Airlines
Deal found 7/22$191
This Alaska Airlines deal was found by Cheapflights users on 7/21. 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.
Wed 10/217:41 am
BIL
-
SEA
Nonstop2h 09m
Alaska Airlines
Sat 10/248:56 pm
SEA
-
BIL
Nonstop1h 54m
Alaska Airlines
Deal found 7/21$207
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 9/37:20 pm
BIL
-
SEA
Nonstop2h 11m
Alaska Airlines
Tue 9/88:35 am
SEA
-
BIL
Nonstop2h 05m
Alaska Airlines
Deal found 7/22$217
This Delta deal was found by Cheapflights users on 7/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:24 pm
BIL
-
SEA
1 stop4h 41m
Delta
Sat 9/125:45 am
SEA
-
BIL
1 stop5h 32m
Delta
Deal found 7/22$227
This Expedia deal was found by Cheapflights users on 7/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:21 pm
BIL
-
SEA
Nonstop2h 11m
Alaska Airlines
Mon 8/248:35 pm
SEA
-
BIL
Nonstop1h 54m
Alaska Airlines
Deal found 7/21$234
This Delta deal was found by Cheapflights users on 7/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:24 pm
BIL
-
SEA
1 stop6h 35m
Delta
Tue 9/15:45 am
SEA
-
BIL
1 stop4h 22m
Delta
Deal found 7/21$237
This Delta deal was found by Cheapflights users on 7/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:24 pm
BIL
-
SEA
1 stop4h 41m
Delta
Sun 9/65:45 am
SEA
-
BIL
1 stop5h 30m
Delta
Deal found 7/22$247
This Delta deal was found by Cheapflights users on 7/25. 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.
Fri 9/256:33 pm
BIL
-
SEA
1 stop6h 26m
Delta
Mon 9/285:45 am
SEA
-
BIL
1 stop5h 32m
Delta
Deal found 7/25$257
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 9/412:11 pm
BIL
-
SEA
Nonstop2h 08m
Alaska Airlines
Sun 9/68:35 am
SEA
-
BIL
Nonstop1h 56m
Alaska Airlines
Deal found 7/22$262
This Delta deal was found by Cheapflights users on 7/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:51 am
BIL
-
SEA
1 stop6h 03m
Delta
Mon 8/315:45 am
SEA
-
BIL
1 stop4h 22m
Delta
Deal found 7/21$267

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 July 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$191
(SmartFares)

One-way from

$110
(Kiwi.com)

Popular in

August

Cheapest in

September

Average price

$357

Good round-trip deal

$310 or less

Good one-way deal

$203 or less
Provider with most accurate pricing for Billings Logan Intl-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Billings Logan Intl-Seattle/Tacoma Intl flights.
Search Deals
From Billings Logan Intl to Seattle/Tacoma Intl
Search Deals
One-way flight from Billings Logan Intl to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($9 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Billings Logan Intl to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Billings Logan Intl to Seattle/Tacoma Intl.
Search Deals

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 2,558,603 searches. Data last updated July 26, 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

Price

Cheapest round-trip
Quickest round-trip

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Wed 10/21

7:41 am-8:50 am

Nonstop2h 09m

Seattle/Tacoma Intl

Sat 10/24

8:56 pm-11:50 pm

Nonstop1h 54m

$207

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Sat 10/3

6:33 pm-10:10 pm

1 stop4h 37m

Seattle/Tacoma Intl

Sat 10/10

5:35 am-12:18 pm

1 stop5h 43m

$227

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Fri 9/25

6:33 pm-10:10 pm

1 stop4h 37m

Seattle/Tacoma Intl

Mon 9/28

5:45 am-12:17 pm

1 stop5h 32m

$247

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Mon 9/7

5:20 am-8:57 am

1 stop4h 37m

Seattle/Tacoma Intl

Mon 9/14

5:45 am-12:17 pm

1 stop5h 32m

$247

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Sun 10/11

6:19 pm-10:05 pm

1 stop4h 46m

Seattle/Tacoma Intl

Wed 10/14

5:35 am-12:18 pm

1 stop5h 43m

$297

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Thu 9/3

7:20 pm-8:31 pm

Nonstop2h 11m

Seattle/Tacoma Intl

Tue 9/8

9:59 pm-3:02 pm

1 stop16h 03m

$310

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Sun 10/11

7:41 am-8:50 am

Nonstop2h 09m

Seattle/Tacoma Intl

Wed 10/14

8:56 pm-11:50 pm

Nonstop1h 54m

$326

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Wed 10/21

5:00 am-10:01 am

1 stop6h 01m

Seattle/Tacoma Intl

Sat 10/24

5:00 am-1:14 pm

1 stop7h 14m

$337
Cheapest one-way

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Fri 10/23

5:51 pm-10:00 am

1 stop17h 09m

$143
Quickest one-way

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Sun 9/20

6:14 am-7:20 am

Nonstop2h 06m

$144

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/21

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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

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, September is the cheapest month in which you can book a flight from Billings to Seattle (average of $233). Flying from Billings to Seattle in August is currently the most expensive (average of $398). 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 July 26, 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 25% on airfare.

How much does it cost to fly round-trip from Billings to Seattle?

Airfare is below average for this route at the moment.

Billings to Seattle flights typically cost between $330 and $444 in September.
The cheapest round-trip price found within the last 5 days was $191 on Alaska Airlines (Sep 5-Sep 12).

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 July 26, 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.
Alaska Airlines
7.9
Good
12,717 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.0

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Alaska Airlines
7.9
Good
12,717 reviews
Alaska Airlines
7.9
Good
12,717 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.0

Food

7.0

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.

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.

  • What airports do I use to fly from Billings to Seattle?

    To fly from Billings to Seattle, you need to book a flight from Billings Logan Intl (BIL) to Seattle/Tacoma Intl (SEA). Nonstop flights to Seattle/Tacoma Intl from Billings Logan Intl take 2h 06m on average. When it comes time to book airfare, you have a few options: there are 8 outbound flights from Billings Logan Intl to Seattle/Tacoma Intl offered by 1 airline.

  • How popular is this Billings to Seattle flight route?

    Flights from Billings Logan Intl to Seattle/Tacoma Intl have been viewed 6 times in the past calendar month.

  • How long is the flight from Billings to Seattle?

    For as low as $207, Alaska Airlines can have you in Seattle from Billings in 2h 09m. Billings and Seattle are separated by a distance of 662 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Billings to Seattle round-trip?

    Flying on Alaska Airlines is currently your cheapest option to Seattle, with prices starting at $157. Alaska Airlines is currently priced 50% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Billings to Seattle?

    No one likes to see their flight delayed. When booking a flight from Billings to Seattle consider choosing Finnair (96%), British Airways (89%) or Alaska Airlines (85%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Billings to Seattle?

    On average you can expect to pay $364 for a flight from Billings to Seattle. The cheapest flight overall is $178 while the most popular route, (Billings Logan Intl - Seattle/Tacoma Intl) is currently priced at $227.

  • Can I find deals for flights from Billings to Seattle that include hotel bookings?

    Yes. In addition to deals on Billings to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Billings to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Billings to Seattle.

  • Can I find deals for business class flights from Billings to Seattle?

    Yes. Cheapflights offers flight deals from Billings to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Billings to Seattle?

    Currently, September is the cheapest month in which you can book a flight from Billings to Seattle (average of $233). Flying from Billings to Seattle in August is currently the most expensive (average of $398). 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.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tacoma
Renton
Lacey
Leavenworth
Olympia
Edmonds
Snoqualmie
Tumwater
Tukwila
Centralia
Puyallup
Kent
Ellensburg
Fife
Marysville
Ocean Shores
Lakewood
Lynnwood
Issaquah

Browse thousands of different options on Cheapflights for your next trip

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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 2,558,603 searches. Data last updated July 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$157Average$325FlexibilityNo cancel feeOn-time75%

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