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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
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
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 27 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

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 July 1, 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

$353 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 ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 1, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 6/30. 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 8/196:00 amBIL - SEA
Nonstop2h 09mHawaiian Airlines
Tue 8/269:15 pmSEA - BIL
Nonstop1h 56mHawaiian Airlines
Deal found 6/30$167
This Alaska Airlines deal was found by Cheapflights users on 6/30. 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 9/133:43 pmBIL - SEA
1 stop4h 02mAlaska Airlines
Sun 9/149:15 pmSEA - BIL
Nonstop1h 56mAlaska Airlines
Deal found 6/30$197
This Delta deal was found by Cheapflights users on 6/30. 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 8/196:08 pmBIL - SEA
1 stop5h 12mDelta
Tue 8/265:49 pmSEA - BIL
1 stop3h 58mDelta
Deal found 6/30$212
This United Airlines deal was found by Cheapflights users on 6/30. 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 8/225:57 pmBIL - SEA
1 stop6h 02mUnited Airlines
Mon 8/256:25 amSEA - BIL
2 stops13h 09mUnited Airlines
Deal found 6/30$252

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 1, 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 8/19

6:00 am-7:09 am

Nonstop2h 09m

Seattle/Tacoma Intl

Tue 8/26

9:15 pm-12:11 am

Nonstop1h 56m

$167

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Sat 9/13

3:43 pm-6:45 pm

1 stop4h 02m

Seattle/Tacoma Intl

Mon 9/15

9:15 pm-12:11 am

Nonstop1h 56m

$197

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Tue 8/19

6:08 pm-10:20 pm

1 stop5h 12m

Seattle/Tacoma Intl

Tue 8/26

5:49 pm-10:47 pm

1 stop3h 58m

$212

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Fri 8/22

5:57 pm-10:59 pm

1 stop6h 02m

Seattle/Tacoma Intl

Mon 8/25

6:25 am-8:34 pm

2 stops13h 09m

$252

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Sat 11/1

3:40 pm-9:34 pm

1 stop6h 54m

$88

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Tue 11/4

5:59 pm-10:16 pm

1 stop5h 17m

$89

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Sun 11/2

2:00 pm-3:11 pm

Nonstop2h 11m

$109

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Sat 11/1

5:00 am-1:28 pm

2 stops9h 28m

$129

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Sun 11/2

5:13 am-1:41 pm

1 stop9h 28m

$150

BillingsSeattle

BIL - SEA

BILSEA

Billings Logan Intl

Fri 7/18

10:26 pm-10:47 pm

3 stops25h 21m

$273

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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 June 27, 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 July is currently the most expensive (average of $391). 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 1, 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 17% 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 June 29, 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.

Weekly flight availability from Billings to Seattle

Explore weekly flight availability from Billings to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 1, 2025.

The most flights from BIL to SEA are scheduled on a Monday (12 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (8 on average).

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 July 1, 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

Comfort

7.8

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,974 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.8
Good
2,538 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,858 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Food

7.1

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 10 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 15 times in the past calendar month.

  • 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. Additional round-trip tickets that might be worth considering are offered by Alaska Airlines and Delta, with the lowest prices starting at $197 and $212, respectively. Hawaiian Airlines is currently priced 48% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Billings to Seattle one-way?

    One-way options have recently been found by users for as low as $88 on Alaska Airlines. Other airlines that offer cheap prices include Delta from $89 and Hawaiian Airlines from $109 one-way.

  • 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 (95%), British Airways (92%) or Finnair (89%) 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 $626 for a flight from Billings to Seattle. The cheapest flight overall is $153 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, 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 July is currently the most expensive (average of $391). 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 Billings?

Book flights to Billings if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lacey
Leavenworth
Federal Way
Lynnwood
Olympia
Shoreline
Puyallup
Cle Elum
Centralia
Kent
Kirkland
Aberdeen
Renton
Shelton
Silverdale

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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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$186Average$313FlexibilityNo cancel feeOn-time75%
DeltaCheapest$216Average$286FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$228Average$328FlexibilityNo cancel feeOn-time85%

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