HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — SEA
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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 January or February, booked 32 days in advance, depart on a Thursday or Friday and return on a Wednesday

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 December 23, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/21. 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 12/286:00 amBIL - SEA
Nonstop2h 18mAlaska Airlines
Wed 1/288:42 pmSEA - BIL
Nonstop1h 54mAlaska Airlines
Deal found 12/21$478
This United Airlines deal was found by Cheapflights users on 12/22. 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.
Tue 12/236:35 amBIL - SEA
2 stops10h 49mUnited Airlines
Sat 12/275:02 amSEA - BIL
1 stop7h 22mUnited Airlines
Deal found 12/22$614
This Kiwi.com deal was found by Cheapflights users on 12/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2210:02 amBIL - SEA
1 stop25h 09mMultiple Airlines
Sun 12/286:05 pmSEA - BIL
1 stop14h 19mMultiple Airlines
Deal found 12/22$626
This Delta deal was found by Cheapflights users on 12/21. 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.
Mon 12/2211:52 amBIL - SEA
1 stop7h 39mDelta
Sun 12/285:25 amSEA - BIL
1 stop4h 47mDelta
Deal found 12/21$648
This Kiwi.com deal was found by Cheapflights users on 12/21. 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 12/2210:02 amBIL - SEA
1 stop25h 09mMultiple Airlines
Sat 12/277:28 pmSEA - BIL
1 stop24h 47mMultiple Airlines
Deal found 12/21$670
This United Airlines deal was found by Cheapflights users on 12/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:50 pmBIL - SEA
1 stop6h 22mUnited Airlines
Sat 12/275:02 amSEA - BIL
1 stop7h 22mUnited Airlines
Deal found 12/21$689
This Alaska Airlines deal was found by Cheapflights users on 12/21. 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.
Mon 12/223:27 pmBIL - SEA
1 stop7h 05mAlaska Airlines
Sun 1/49:38 pmSEA - BIL
Nonstop1h 54mAlaska Airlines
Deal found 12/21$713
This Alaska Airlines deal was found by Cheapflights users on 12/22. 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 12/256:00 amBIL - SEA
Nonstop2h 18mAlaska Airlines
Thu 12/259:38 pmSEA - BIL
Nonstop1h 54mAlaska Airlines
Deal found 12/22$718

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 December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$157
(Alaska Airlines)

One-way from

$88
(Alaska Airlines)

Popular in

December

Cheapest in

January

Average price

$470

Good round-trip deal

$380 or less

Good one-way deal

$260 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. 9% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 23, 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 1/27

3:35 pm-4:51 pm

Nonstop2h 16m

Seattle/Tacoma Intl

Sat 1/31

8:42 pm-11:36 pm

Nonstop1h 54m

$157

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Wed 1/28

11:47 am-4:55 pm

1 stop6h 08m

Seattle/Tacoma Intl

Wed 2/4

12:00 pm-7:24 pm

1 stop6h 24m

$167

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Tue 5/5

7:00 am-8:08 am

Nonstop2h 08m

Seattle/Tacoma Intl

Sat 5/16

3:47 pm-6:41 pm

Nonstop1h 54m

$177

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Tue 1/27

5:15 am-9:17 am

1 stop5h 02m

Seattle/Tacoma Intl

Mon 2/2

4:55 pm-10:31 pm

1 stop4h 36m

$177

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Fri 2/13

2:04 pm-3:17 pm

Nonstop2h 13m

Seattle/Tacoma Intl

Sun 2/15

8:45 pm-11:38 pm

Nonstop1h 53m

$177

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Fri 1/30

6:10 pm-12:09 am

1 stop6h 59m

Seattle/Tacoma Intl

Mon 2/2

4:55 pm-10:31 pm

1 stop4h 36m

$187

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Thu 2/5

3:35 pm-6:43 pm

1 stop4h 08m

Seattle/Tacoma Intl

Thu 2/12

7:45 am-1:24 pm

1 stop4h 39m

$197

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Sat 1/31

3:35 pm-8:35 pm

1 stop6h 00m

Seattle/Tacoma Intl

Sun 2/1

8:42 pm-11:36 pm

Nonstop1h 54m

$197

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Wed 1/28

3:35 pm-4:51 pm

Nonstop2h 16m

Seattle/Tacoma Intl

Sat 1/31

8:25 am-1:22 pm

1 stop3h 57m

$197

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Thu 1/29

7:00 am-8:19 am

Nonstop2h 19m

Seattle/Tacoma Intl

Tue 2/3

11:59 am-2:55 pm

Nonstop1h 56m

$203

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 19 results
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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Billings-Seattle flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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?

Use this chart to determine the optimal time to book a round-trip flight from Billings to Seattle. Price data was last updated on December 19, 2025.

To ensure you get the cheapest price possible for a flight from Billings to Seattle, you should look to book at least 32 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, December is the cheapest month in which you can book a flight from Billings to Seattle (average of $157). Flying from Billings to Seattle in June is currently the most expensive (average of $245). 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 December 23, 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 in the afternoon could potentially save you up to 26% 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 December 20, 2025.

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

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 December 23, 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
11,517 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Alaska Airlines
8.0
Very good
11,517 reviews
Alaska Airlines
8.0
Very good
11,517 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Delta
7.9
Good
8,015 reviews
Alaska Airlines
8.0
Very good
11,517 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Hawaiian Airlines
7.8
Good
2,820 reviews
Alaska Airlines
8.0
Very good
11,517 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

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 13m 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 19 times in the past calendar month.

  • How long is the flight from Billings to Seattle?

    For as low as $157, Alaska Airlines can have you in Seattle from Billings in 2h 16m. 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 Alaska Airlines is currently your cheapest option to Seattle, with prices starting at $164. Additional round-trip tickets that might be worth considering are offered by Hawaiian Airlines and Delta, with the lowest prices starting at $177 and $189, respectively. Alaska Airlines is currently priced 47% 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 Hawaiian Airlines (86%), Korean Air (85%) or Qatar Airways (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 $968 for a flight from Billings to Seattle. The cheapest flight overall is $130 while the most popular route, (Billings Logan Intl - Seattle/Tacoma Intl) is currently priced at $167.

  • 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, December is the cheapest month in which you can book a flight from Billings to Seattle (average of $157). Flying from Billings to Seattle in June is currently the most expensive (average of $245). 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
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Edmonds
Lynnwood
Renton
Puyallup
Kirkland
Kent
Tukwila
Cle Elum
Marysville
Leavenworth
Fife
Aberdeen
Shoreline
Centralia
Federal Way

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$164Average$316FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$177Average$328FlexibilityNo cancel feeOn-time85%
DeltaCheapest$189Average$256FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.