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$88+ 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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SEA
Aug 21 — Aug 281
Thu 8/21
Thu 8/28
1 adult, Economy
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Cheapflights Tip: The best prices from Billings Logan Intl to Seattle/Tacoma Intl are usually found in January or February, booked 60 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Cheap 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 August 16, 2025.

Round-trip from

$157
(Hawaiian Airlines)

One-way from

$88
(Alaska Airlines)

Popular in

December

Cheapest in

January

Average price

$328

Good round-trip deal

$358 or less

Good one-way deal

$153 or less
From Billings Logan Intl to Seattle/Tacoma Intl
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One-way flight from Billings Logan Intl to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 4% potential increase in price ($13 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Billings Logan Intl to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Billings Logan Intl to Seattle/Tacoma Intl.
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Find 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 August 16, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 8/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/217:15 pmBIL - SEA
Nonstop2h 20mHawaiian Airlines
Sat 10/253:42 pmSEA - BIL
Nonstop1h 53mHawaiian Airlines
Deal found 8/14$157
This Hawaiian Airlines deal was found by Cheapflights users on 8/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/257:18 pmBIL - SEA
Nonstop2h 11mHawaiian Airlines
Sat 9/273:45 pmSEA - BIL
Nonstop1h 53mHawaiian Airlines
Deal found 8/14$167
This Hawaiian Airlines deal was found by Cheapflights users on 8/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/187:18 pmBIL - SEA
Nonstop2h 11mHawaiian Airlines
Sun 9/219:15 pmSEA - BIL
Nonstop1h 56mHawaiian Airlines
Deal found 8/15$177
This Delta deal was found by Cheapflights users on 8/14. 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 10/216:15 pmBIL - SEA
1 stop5h 07mDelta
Sat 10/2511:15 amSEA - BIL
1 stop5h 01mDelta
Deal found 8/14$187
This Hawaiian Airlines deal was found by Cheapflights users on 8/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/37:18 pmBIL - SEA
Nonstop2h 11mHawaiian Airlines
Sat 10/1812:05 pmSEA - BIL
Nonstop1h 59mHawaiian Airlines
Deal found 8/15$193
This Trip.com deal was found by Cheapflights users on 8/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/287:18 pmBIL - SEA
Nonstop2h 11mHawaiian Airlines
Sun 10/59:15 pmSEA - BIL
Nonstop1h 53mHawaiian Airlines
Deal found 8/14$196
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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 9/127:18 pmBIL - SEA
Nonstop2h 11mAlaska Airlines
Tue 9/165:20 amSEA - BIL
1 stop7h 04mAlaska Airlines
Deal found 8/14$197
This Hawaiian Airlines deal was found by Cheapflights users on 8/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/37:18 pmBIL - SEA
Nonstop2h 11mHawaiian Airlines
Mon 10/69:15 pmSEA - BIL
Nonstop1h 53mHawaiian Airlines
Deal found 8/15$203
This Delta deal was found by Cheapflights users on 8/14. 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.
Thu 9/255:25 amBIL - SEA
1 stop4h 42mDelta
Sat 9/275:30 amSEA - BIL
1 stop4h 23mDelta
Deal found 8/14$212
This Alaska Airlines deal was found by Cheapflights users on 8/14. 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 9/257:18 pmBIL - SEA
Nonstop2h 11mAlaska Airlines
Sat 9/275:20 amSEA - BIL
1 stop7h 04mAlaska Airlines
Deal found 8/14$220
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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 10/37:18 pmBIL - SEA
Nonstop2h 11mAlaska Airlines
Sun 10/59:15 pmSEA - BIL
Nonstop1h 53mAlaska Airlines
Deal found 8/15$228
This Alaska Airlines deal was found by Cheapflights users on 8/15. 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 10/33:43 pmBIL - SEA
1 stop23h 52mAlaska Airlines
Mon 10/69:15 pmSEA - BIL
Nonstop1h 53mAlaska Airlines
Deal found 8/15$230

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 August 16, 2025.
Use the filters below to find and compare flights from Billings to Seattle that are best for you.

Fly from

Billings

Fly to

Seattle

Route

Depart

Return

Price

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Tue 10/21

7:15 pm-8:35 pm

Nonstop2h 20m

Seattle/Tacoma Intl

Sat 10/25

3:42 pm-6:35 pm

Nonstop1h 53m

$157

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Sat 10/11

7:15 pm-8:35 pm

Nonstop2h 20m

Seattle/Tacoma Intl

Thu 10/16

9:15 pm-12:08 am

Nonstop1h 53m

$167

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Fri 9/12

7:18 pm-8:29 pm

Nonstop2h 11m

Seattle/Tacoma Intl

Tue 9/16

9:15 pm-12:11 am

Nonstop1h 56m

$167

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Thu 9/25

7:18 pm-8:29 pm

Nonstop2h 11m

Seattle/Tacoma Intl

Sat 9/27

3:45 pm-6:38 pm

Nonstop1h 53m

$167

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Sat 10/11

7:15 pm-8:35 pm

Nonstop2h 20m

Seattle/Tacoma Intl

Mon 10/27

3:47 pm-6:39 pm

Nonstop1h 52m

$167

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Thu 9/18

7:18 pm-8:29 pm

Nonstop2h 11m

Seattle/Tacoma Intl

Sun 9/21

9:15 pm-12:11 am

Nonstop1h 56m

$177

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Fri 10/3

3:43 pm-6:45 pm

1 stop4h 02m

Seattle/Tacoma Intl

Sat 10/18

12:05 pm-3:04 pm

Nonstop1h 59m

$177

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Thu 9/18

7:18 pm-8:29 pm

Nonstop2h 11m

Seattle/Tacoma Intl

Mon 9/22

9:15 pm-12:11 am

Nonstop1h 56m

$177

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Sat 11/1

3:40 pm-6:48 pm

1 stop4h 08m

$88

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Tue 11/4

3:40 pm-6:48 pm

1 stop4h 08m

$88

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 15 results
1
2

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?

Use this chart to determine the optimal time to book a round-trip flight from Billings to Seattle. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from Billings to Seattle, you should look to book at least 27 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, January is the cheapest month in which you can book a flight from Billings to Seattle (average of $238). Flying from Billings to Seattle in June is currently the most expensive (average of $389). 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 August 16, 2025.

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 morning tend to be the most expensive. A flight at noon could potentially save you up to 18% on airfare.

What is the cheapest day to fly from Billings to Seattle?

Use this chart to determine the cheapest time to fly round-trip from Billings to Seattle. Price data was last updated on August 10, 2025.

Travelers seeking maximum savings on their Billings to Seattle flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 August 16, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, 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
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
8.0
Very good
7,985 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,657 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Crew

8.5

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

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 08m 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 3 different airlines.

  • How popular is this Billings to Seattle flight route?

    Flights from Billings Logan Intl to Seattle/Tacoma Intl have been viewed 21 times in the past calendar month.

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

    Flying on Alaska Airlines is currently your cheapest option to Seattle, with prices starting at $185. Additional round-trip tickets that might be worth considering are offered by Delta and Hawaiian Airlines, with the lowest prices starting at $216 and $228, respectively. Alaska Airlines is currently priced 40% 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 Korean Air (97%), Qatar Airways (93%) or British Airways (92%) 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 $467 for a flight from Billings to Seattle. The cheapest flight overall is $141 while the most popular route, (Billings Logan Intl - Seattle/Tacoma Intl) is currently priced at $157.

  • 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, January is the cheapest month in which you can book a flight from Billings to Seattle (average of $238). Flying from Billings to Seattle in June is currently the most expensive (average of $389). 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
Tukwila
Tacoma
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Billings to Seattle

Discover the top 3 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 August 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$185Average$319FlexibilityNo cancel feeOn-time75%
DeltaCheapest$216Average$286FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$228Average$328FlexibilityNo cancel feeOn-time85%

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