£85 Cheap Flights from Billings (BIL) to Seattle (SEA)

View £85 flight on Sat, 5 Sept 2026Opens in a new window

Popular airlines from Billings Logan Intl. Airport (BIL) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Billings (BIL) to Seattle (SEA)

Prices were available within the past 7 days and start at £85 for one-way flights and £154 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, 29 Aug - Sat, 5 Sept
BIL
Billings
SEA
Seattle
£154 Return, found 5 days ago
£154
Return
found 5 days ago
Select Alaska Airlines flight, departing Sat, 29 Aug from Billings to Seattle, returning Sat, 5 Sept, priced at £154 found 5 days ago
Alaska Airlines
Sat, 29 Aug - Sat, 5 Sept
BIL
Billings
SEA
Seattle
£162 Return, found 5 days ago
£162
Return
found 5 days ago
Select Alaska Airlines flight, departing Sat, 29 Aug from Billings to Seattle, returning Sat, 5 Sept, priced at £162 found 5 days ago
Alaska Airlines
Sat, 29 Aug - Sat, 5 Sept
BIL
Billings
SEA
Seattle
£188 Return, found 5 days ago
£188
Return
found 5 days ago
Select Alaska Airlines flight, departing Sat, 29 Aug from Billings to Seattle, returning Sat, 5 Sept, priced at £188 found 5 days ago
Alaska Airlines
Sat, 29 Aug - Sat, 5 Sept
BIL
Billings
SEA
Seattle
£195 Return, found 5 days ago
£195
Return
found 5 days ago
Select Alaska Airlines flight, departing Sat, 29 Aug from Billings to Seattle, returning Sat, 5 Sept, priced at £195 found 5 days ago
Alaska Airlines
Sat, 29 Aug - Sat, 5 Sept
BIL
Billings
SEA
Seattle
£218 Return, found 5 days ago
£218
Return
found 5 days ago
Select Alaska Airlines flight, departing Sat, 29 Aug from Billings to Seattle, returning Sat, 5 Sept, priced at £218 found 5 days ago
Alaska Airlines
Wed, 15 Jul - Wed, 22 Jul
BIL
Billings
SEA
Seattle
£221 Return, found 3 days ago
£221
Return
found 3 days ago
Select Alaska Airlines flight, departing Wed, 15 Jul from Billings to Seattle, returning Wed, 22 Jul, priced at £221 found 3 days ago
Alaska Airlines
Sat, 29 Aug - Sat, 5 Sept
BIL
Billings
SEA
Seattle
£225 Return, found 5 days ago
£225
Return
found 5 days ago
Select Alaska Airlines flight, departing Sat, 29 Aug from Billings to Seattle, returning Sat, 5 Sept, priced at £225 found 5 days ago
Alaska Airlines
Fri, 3 Jul - Thu, 9 Jul
BIL
Billings
SEA
Seattle
£232 Return, found 4 days ago
£232
Return
found 4 days ago
Select Alaska Airlines flight, departing Fri, 3 Jul from Billings to Seattle, returning Thu, 9 Jul, priced at £232 found 4 days ago
Alaska Airlines
Wed, 15 Jul - Wed, 22 Jul
BIL
Billings
SEA
Seattle
£233 Return, found 3 days ago
£233
Return
found 3 days ago
Select Alaska Airlines flight, departing Wed, 15 Jul from Billings to Seattle, returning Wed, 22 Jul, priced at £233 found 3 days ago
Alaska Airlines
Thu, 9 Jul - Thu, 16 Jul
BIL
Billings
SEA
Seattle
£233 Return, found 2 days ago
£233
Return
found 2 days ago
Select Alaska Airlines flight, departing Thu, 9 Jul from Billings to Seattle, returning Thu, 16 Jul, priced at £233 found 2 days ago

Frequently asked questions

How much does a flight from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
One-way flights typically cost between $214 and $995 and return flights often range between $1,759 and $2,621. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
April is typically the cheapest month to fly from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), with average round-trip fares of approximately 663 CAD. This is about 17% lower than the average price throughout the year. April often sees lower prices as it's outside peak holiday seasons, making it a good time to find deals. Other cheap months to fly from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) include January and August.*Averages based on flights available on Expedia in the last year.
How do I find cheap flights from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Billings, MT (BIL-Logan Intl.) (BIL) to Seattle, WA (SEA-Seattle - Tacoma Intl.) (SEA) will differ from traveler to traveler. If you like to fly early, AS offers early morning flights. If price is the most important factor, AS typically offers the lowest fares. UA offers the most daily flights from Billings, MT (BIL-Logan Intl.) (BIL) to Seattle, WA (SEA-Seattle - Tacoma Intl.) (SEA), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly from Billings, MT (BIL-Logan Intl.) (BIL) to Seattle, WA (SEA-Seattle - Tacoma Intl.) (SEA) is January. Based on booking data from the past year, January is both one of the cheapest months to fly, with average round-trip flights around 663 CAD, and also a popular time to travel, meaning you'll find plenty of flight options. This balance of good value and availability makes it an ideal time for your trip.*Prices based on flights available on Expedia in the last year.
How many flights per day from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 14 connecting flights per day from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.). Some common connection points include Denver Intl. (DEN), Salt Lake City Intl. (SLC), and Portland Intl. (PDX).
What is the earliest flight from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically departs at approximately 5:00 AM local time, operated by American Airlines. This is a seasonal service active in February and March. An early departure like this can help maximize your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you're flying from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), you'll generally find the most flight options on a Friday, with around 15 flights available. This gives you a good selection for your travel plans. Flight schedules are consistent throughout the week, with only a slight variation in the number of flights. Major airlines on this route include United Airlines, Delta Air Lines, and Alaska Airlines.
What are the most popular departure times for flights from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Billings, MT (BIL-Logan Intl.) (BIL) to Seattle, WA (SEA-Seattle - Tacoma Intl.) (SEA) are in the early morning, from 6am to 9am. About 28% of passengers prefer this time. Many major carriers, including Alaska Airlines, Delta Air Lines and United Airlines, offer flights during this window. This timing works well because it allows you to get an early start on your travel day and arrive in Seattle with plenty of time for your activities.
How long does it take to fly from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Direct flights from BIL to SEA usually take about 2 hours 20 minutes, traveling roughly 662 miles. If you opt for a connecting flight, expect to add around 5 hours 30 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Select the "Business class" and "First class" filters when looking for BIL to SEA flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from Logan Intl. (BIL)?
If you're planning to travel to Seattle from Logan Intl. (BIL), you can fly into Seattle - Tacoma Intl. (SEA) Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Portland Intl. (PDX), Salt Lake City Intl. (SLC) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Logan Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines
Return price
£154
Distance
1059 km
Average flight time
1 hour 11 mins

Book with confidence

Compare flights from Billings to Seattle easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Billings to Seattle. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Seattle - Tacoma Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Logan Intl. to Seattle - Tacoma Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Logan Intl. (BIL) to Seattle - Tacoma Intl. (SEA)

The easiest way to view the best deals on flights from Billings to Seattle today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Logan Intl. to Seattle - Tacoma Intl. start at just £154 and range up to £411.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Billings and Seattle
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Billings to Seattle flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Logan Intl. to Seattle - Tacoma Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Billings to Seattle easily and book with confidence

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*Available to Expedia members.