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Amazing Alaska Airlines BIL to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $217 round trip and $109 one way. Prices and availability subject to change. Additional terms may apply.



FAQs about Alaska Airlines Flights from BIL to SEA
Can I catch a flight from Billings, MT (BIL-Logan Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) right now?

It's prudent to find out about any quarantine requirements and travel advice reports in effect in your destination city. Ensure you check out our Covid-19 Travel Advisor for up-to-date info on flying to Seattle, WA (SEA-Seattle - Tacoma Intl.).

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to Sea-Tac Airport, please visit our Customer Service Portal.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2020. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Sunday, as data shows the end of the week is when prices are generally at their highest.

What are the cheapest days to fly?

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2020, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

How far in advance can you book a flight?

Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2020 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2 weeks to 2 months prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2020 saved nearly 40% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2020. Savings are subject to change based on departure location, date and destination.

Carrier Flight Depart BIL Arrive SEA Wed
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AS 2515 09:00 am 10:32 am Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
AS 2085 11:55 am 01:27 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)
AS 2046 06:50 pm 08:22 pm Check fare Check fare Check fare Check fare Check fare Check fare Check fare 0 stop(s)

Travelers ❤️ these 🏨 after their flight to Seattle

Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA
Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA
3.0 out of 5.0 3100 South 192nd Street, SeaTac, WA
$76
4.5/5 (74 reviews)

Even with Covid it seems like something could be worked out to still offer a hot breakfast. That being said, the cold breakfast bag they offer isn't bad but gets old if you're there multiple days. The elevator was broken the last couple days I was there so that was inconvenient but not necessarily ...

Reviewed on Mar 16, 2021
This hotel doesn't skimp on freebies - guests receive free buffet breakfast, free self parking, and a free airport shuttle. Traveling on business? Take advantage ...
Hampton Inn & Suites Seattle-Airport/28th Ave
Hampton Inn & Suites Seattle-Airport/28th Ave
2.5 out of 5.0 18850 28th Ave South, SeaTac, WA
$101
4.6/5 (36 reviews)

Very nice room and friendly front service. Will definitely come back!

Reviewed on Mar 11, 2021
This hotel features an indoor pool and a 24-hour fitness center. Traveling on business? Take advantage of the 2 conference rooms, 24-hour business center, and ...
Red Lion Hotel Seattle Airport Sea-Tac
Red Lion Hotel Seattle Airport Sea-Tac
3.0 out of 5.0 18220 International Blvd, SeaTac, WA
$67
3.9/5 (54 reviews)

Friendly staff.

Reviewed on Apr 8, 2021
This hotel doesn't skimp on freebies - guests have free WiFi and a free airport shuttle. Traveling for business? Take advantage of the business center, express ...

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.