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$114+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SEA
Jun 24 — Jul 11
Wed 6/24
Wed 7/1
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 63 days in advance, depart on a Thursday or Saturday and return on a Saturday

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 May 25, 2026.

This Alaska Airlines deal was found by Cheapflights users on 5/23. 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 9/57:29 pm
BIL
-
SEA
Nonstop2h 11m
Alaska Airlines
Tue 9/88:35 pm
SEA
-
BIL
Nonstop1h 54m
Alaska Airlines
Deal found 5/23$207
This Alaska Airlines deal was found by Cheapflights users on 5/23. 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.
Fri 9/47:20 pm
BIL
-
SEA
Nonstop2h 11m
Alaska Airlines
Tue 9/88:35 pm
SEA
-
BIL
Nonstop1h 54m
Alaska Airlines
Deal found 5/23$217
This Alaska Airlines deal was found by Cheapflights users on 5/23. 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.
Fri 9/47:20 pm
BIL
-
SEA
Nonstop2h 11m
Alaska Airlines
Sun 9/68:35 pm
SEA
-
BIL
Nonstop1h 54m
Alaska Airlines
Deal found 5/23$227
This Delta deal was found by Cheapflights users on 5/22. 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.
Wed 8/266:34 pm
BIL
-
SEA
1 stop4h 31m
Delta
Mon 9/75:45 am
SEA
-
BIL
1 stop4h 15m
Delta
Deal found 5/22$237
This Delta deal was found by Cheapflights users on 5/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:25 pm
BIL
-
SEA
1 stop6h 36m
Delta
Mon 9/2811:25 am
SEA
-
BIL
1 stop5h 23m
Delta
Deal found 5/20$247
This CheapOair deal was found by Cheapflights users on 5/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:29 pm
BIL
-
SEA
Nonstop2h 11m
Alaska Airlines
Mon 9/288:35 pm
SEA
-
BIL
Nonstop1h 54m
Alaska Airlines
Deal found 5/24$262
This Delta deal was found by Cheapflights users on 5/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:34 pm
BIL
-
SEA
1 stop4h 31m
Delta
Mon 8/315:45 am
SEA
-
BIL
1 stop4h 15m
Delta
Deal found 5/20$282
This United Airlines deal was found by Cheapflights users on 5/24. 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 8/275:57 pm
BIL
-
SEA
1 stop6h 07m
United Airlines
Fri 9/42:34 pm
SEA
-
BIL
1 stop5h 26m
United Airlines
Deal found 5/24$290
This Delta deal was found by Cheapflights users on 5/23. 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.
Fri 9/46:33 pm
BIL
-
SEA
1 stop6h 26m
Delta
Tue 9/85:45 am
SEA
-
BIL
1 stop4h 15m
Delta
Deal found 5/23$293
This Alaska Airlines deal was found by Cheapflights users on 5/22. 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.
Wed 7/86:00 am
BIL
-
SEA
Nonstop2h 12m
Alaska Airlines
Wed 7/228:59 pm
SEA
-
BIL
Nonstop1h 52m
Alaska Airlines
Deal found 5/22$297

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 May 25, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$207
(Alaska Airlines)

One-way from

$114
(Delta)

Popular in

June

Cheapest in

September

Average price

$329

Good round-trip deal

$302 or less

Good one-way deal

$206 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. 11% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 25, 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

Fri 10/16

7:32 pm-8:45 pm

Nonstop2h 13m

Seattle/Tacoma Intl

Sun 10/18

3:58 pm-6:52 pm

Nonstop1h 54m

$227

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Fri 9/25

6:33 pm-10:05 pm

1 stop4h 32m

Seattle/Tacoma Intl

Mon 9/28

5:25 am-12:17 pm

1 stop5h 52m

$247

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Sun 8/23

6:34 pm-10:05 pm

1 stop4h 31m

Seattle/Tacoma Intl

Mon 8/31

5:45 am-11:00 am

1 stop4h 15m

$282

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Mon 7/27

5:20 am-9:02 am

1 stop4h 42m

Seattle/Tacoma Intl

Fri 7/31

11:05 am-5:52 pm

1 stop5h 47m

$377

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Fri 7/31

5:20 am-9:02 am

1 stop4h 42m

Seattle/Tacoma Intl

Sun 8/2

5:30 am-11:09 am

1 stop4h 39m

$407

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Fri 10/23

3:44 pm-9:00 pm

2 stops6h 16m

Seattle/Tacoma Intl

Fri 10/30

3:58 pm-6:52 pm

Nonstop1h 54m

$424

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Fri 7/31

7:22 pm-8:35 pm

Nonstop2h 13m

Seattle/Tacoma Intl

Sun 8/2

6:42 am-3:03 pm

1 stop7h 21m

$425

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Mon 8/3

7:22 pm-8:35 pm

Nonstop2h 13m

Seattle/Tacoma Intl

Fri 8/7

11:26 pm-3:03 pm

1 stop14h 37m

$440

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Sun 7/26

6:34 pm-10:00 pm

1 stop4h 26m

Seattle/Tacoma Intl

Sun 8/2

5:30 am-11:09 am

1 stop4h 39m

$508

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Mon 7/27

3:43 pm-8:33 pm

1 stop5h 50m

Seattle/Tacoma Intl

Fri 7/31

11:01 pm-3:03 pm

2 stops15h 02m

$521

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/21

Showing 1-10 of 18 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 May.
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 62 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 June is currently the most expensive (average of $358). 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 May 25, 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 26% on airfare.

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

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 May 25, 2026.
Get a feel of what it's like to fly with Alaska Airlines and Hawaiian 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
12,411 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Alaska Airlines
7.9
Good
12,411 reviews
Alaska Airlines
7.9
Good
12,411 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Hawaiian Airlines
7.8
Good
2,835 reviews
Alaska Airlines
7.9
Good
12,411 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well

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 12m on average. When it comes time to book airfare, you have a few options: there are 6 outbound flights from Billings Logan Intl to Seattle/Tacoma Intl offered by 2 different airlines.

  • How popular is this Billings to Seattle flight route?

    Flights from Billings Logan Intl to Seattle/Tacoma Intl have been viewed 13 times in the past calendar month.

  • How long is the flight from Billings to Seattle?

    For as low as $227, Alaska Airlines can have you in Seattle from Billings in 2h 13m. Billings and Seattle are separated by a distance of 662 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Billings to Seattle round-trip?

    Flying on Hawaiian Airlines is currently your cheapest option to Seattle, with prices starting at $157. Another option worth looking into is Alaska Airlines, starting at $157 round trip. Hawaiian Airlines is currently priced 49% 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 Alaska Airlines (97%), Horizon Air (97%) or Hawaiian Airlines (96%) 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 $546 for a flight from Billings to Seattle. The cheapest flight overall is $158 while the most popular route, (Billings Logan Intl - Seattle/Tacoma Intl) is currently priced at $237.

  • 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 June is currently the most expensive (average of $358). 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
Ocean Shores
Olympia
Lacey
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Lynnwood
Renton
Ellensburg
Fife
Lakewood
Issaquah
Marysville
Shoreline

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Billings to Seattle

Discover the top 2 airlines 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 May 25, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$157Average$328FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$157Average$320FlexibilityNo cancel feeOn-time75%

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