£77 Cheap Flights from Billings (BIL) to Seattle (SEA)

View £77 flight on Wed, 27 May 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 £77 for one-way flights and £212 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, 20 May - Wed, 27 May
BIL
Billings
SEA
Seattle
£212 Return, found 18 hours ago
£212
Return
found 18 hours ago
Select Alaska Airlines flight, departing Wed, 20 May from Billings to Seattle, returning Wed, 27 May, priced at £212 found 18 hours ago
Alaska Airlines
Sun, 17 May - Sun, 24 May
BIL
Billings
SEA
Seattle
£224 Return, found 18 hours ago
£224
Return
found 18 hours ago
Select Alaska Airlines flight, departing Sun, 17 May from Billings to Seattle, returning Sun, 24 May, priced at £224 found 18 hours ago
Alaska Airlines
Sun, 17 May - Sun, 24 May
BIL
Billings
SEA
Seattle
£238 Return, found 18 hours ago
£238
Return
found 18 hours ago
Select Alaska Airlines flight, departing Sun, 17 May from Billings to Seattle, returning Sun, 24 May, priced at £238 found 18 hours ago
Alaska Airlines
Sun, 17 May - Sun, 24 May
BIL
Billings
SEA
Seattle
£250 Return, found 18 hours ago
£250
Return
found 18 hours ago
Select Alaska Airlines flight, departing Sun, 17 May from Billings to Seattle, returning Sun, 24 May, priced at £250 found 18 hours ago
Alaska Airlines
Wed, 20 May - Wed, 27 May
BIL
Billings
SEA
Seattle
£257 Return, found 18 hours ago
£257
Return
found 18 hours ago
Select Alaska Airlines flight, departing Wed, 20 May from Billings to Seattle, returning Wed, 27 May, priced at £257 found 18 hours ago
Alaska Airlines
Wed, 20 May - Wed, 27 May
BIL
Billings
SEA
Seattle
£264 Return, found 18 hours ago
£264
Return
found 18 hours ago
Select Alaska Airlines flight, departing Wed, 20 May from Billings to Seattle, returning Wed, 27 May, priced at £264 found 18 hours ago
Alaska Airlines
Sun, 17 May - Sun, 24 May
BIL
Billings
SEA
Seattle
£276 Return, found 18 hours ago
£276
Return
found 18 hours ago
Select Alaska Airlines flight, departing Sun, 17 May from Billings to Seattle, returning Sun, 24 May, priced at £276 found 18 hours ago
Alaska Airlines
Sun, 17 May - Sun, 24 May
BIL
Billings
SEA
Seattle
£283 Return, found 18 hours ago
£283
Return
found 18 hours ago
Select Alaska Airlines flight, departing Sun, 17 May from Billings to Seattle, returning Sun, 24 May, priced at £283 found 18 hours ago
Alaska Airlines
Wed, 20 May - Wed, 27 May
BIL
Billings
SEA
Seattle
£283 Return, found 18 hours ago
£283
Return
found 18 hours ago
Select Alaska Airlines flight, departing Wed, 20 May from Billings to Seattle, returning Wed, 27 May, priced at £283 found 18 hours ago
Alaska Airlines
Wed, 20 May - Wed, 27 May
BIL
Billings
SEA
Seattle
£286 Return, found 18 hours ago
£286
Return
found 18 hours ago
Select Alaska Airlines flight, departing Wed, 20 May from Billings to Seattle, returning Wed, 27 May, priced at £286 found 18 hours ago

Frequently asked questions

How much is a flight from BIL to SEA?
Pack your bags, because round-trip journeys between Logan Intl. Airport (BIL) and SEA start from £212. That's based on airfares listed within the last 7 days on Expedia for flights departing within the next year. Prices can change quickly, so book now to nab the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Billings Logan International Airport to Sea-Tac Airport?
Most flights can be cancelled online, but whether you incur a fee all comes down to your airline. If you do need to cancel your getaway, follow the instructions in the Customer Service Portal.
How do I find cheap flights from Billings Logan International Airport to SEA that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for BIL to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from BIL to Seattle - Tacoma Intl. Airport (SEA)?
The distance from BIL (BIL) to Sea-Tac Airport (SEA) is only 1,050 kilometres. You'll be walking down the air bridge and grabbing your bags from the carousel in next to no time.
Which airlines fly direct from Logan Intl. Airport (BIL) to Sea-Tac Airport?
Flying nonstop from Billings Logan International Airport to SEA is simple with Alaska Airlines (AS). This popular carrier offers 60 flights each month.
Are Logan Intl. Airport (BIL) to SEA flight tickets cheaper when they're purchased at the last minute?
Booking your trip from BIL to Seattle - Tacoma Intl. Airport (SEA) at the last minute could save you some cash. However, it might cost you a whole lot more! If you'd rather avoid the risk, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to 12 months in advance. If your preferred air carrier hasn't released tickets yet, check back often as deals are updated on Expedia all the time.

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 £115 and £534 and return flights often range between £944 and £1,407. 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.
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 return fares of approximately £379. 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.
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 traveller to traveller. 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 brilliant 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 return flights around £379, 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.
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 maximise 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 directly 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
£212
Distance
1059 km
Average flight time
1 hour 7 mins

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