BIL - SEA

$149 Find Cheap Flights from Billings to Seattle - Compare and Save

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Everything you should know

Cheapest round-trip
$227
Typical prices: $262-$403
Alaska Airlines
Sun 12/2Wed 12/5
BIL - SEA • Non-stop
Cheapest one-way
$149
Typical prices: $193-$345
Alaska Airlines
Mon 12/10
BIL - SEA • Non-stop
Nonstop flights
You can fly direct with Alaska Airlines. Average duration is 2h 19m
Direct flights
+1
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 22 weeks in advance save around 60% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 27% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $362 (round-trip)
Shortest trip • 6h 23m (one-way)
Insights
Insights
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Billings to Seattle (BIL-SEA)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Billings to Seattle

Wed, Dec 2 - Sat, Dec 5
Alaska Airlines Logo
12:04 pm - 1:24 pmBIL  Billings Logan Intl-SEA Seattle/Tacoma Intl
2h 20mnonstop
Alaska Airlines Logo
8:30 am - 11:24 amSEA  Seattle/Tacoma Intl-BIL Billings Logan Intl
1h 54mnonstop
$227Alaska Airlines
Sat, Dec 26 - Wed, Dec 30
Alaska Airlines Logo
6:00 am - 7:21 amBIL  Billings Logan Intl-SEA Seattle/Tacoma Intl
2h 21mnonstop
Alaska Airlines Logo
8:36 pm - 11:30 pmSEA  Seattle/Tacoma Intl-BIL Billings Logan Intl
1h 54mnonstop
$232Alaska Airlines
Fri, Dec 25 - Wed, Dec 30
Alaska Airlines Logo
6:00 am - 7:21 amBIL  Billings Logan Intl-SEA Seattle/Tacoma Intl
2h 21mnonstop
Alaska Airlines Logo
8:36 pm - 11:30 pmSEA  Seattle/Tacoma Intl-BIL Billings Logan Intl
1h 54mnonstop
$232Alaska Airlines
Thu, Dec 3 - Sun, Dec 6
Alaska Airlines Logo
7:01 am - 8:23 amBIL  Billings Logan Intl-SEA Seattle/Tacoma Intl
2h 22mnonstop
Alaska Airlines Logo
8:30 am - 11:24 amSEA  Seattle/Tacoma Intl-BIL Billings Logan Intl
1h 54mnonstop
$237Alaska Airlines
Fri, Dec 25 - Fri, Jan 1
Alaska Airlines Logo
6:00 am - 7:21 amBIL  Billings Logan Intl-SEA Seattle/Tacoma Intl
2h 21mnonstop
Alaska Airlines Logo
8:20 am - 11:16 amSEA  Seattle/Tacoma Intl-BIL Billings Logan Intl
1h 56mnonstop
$237Alaska Airlines
Fri, Jan 22 - Sun, Jan 24
Alaska Airlines Logo
7:30 am - 8:51 amBIL  Billings Logan Intl-SEA Seattle/Tacoma Intl
2h 21mnonstop
Alaska Airlines Logo
8:54 pm - 11:47 pmSEA  Seattle/Tacoma Intl-BIL Billings Logan Intl
1h 53mnonstop
$237Alaska Airlines
Fri, Dec 4 - Sun, Dec 6
Alaska Airlines Logo
7:01 am - 8:23 amBIL  Billings Logan Intl-SEA Seattle/Tacoma Intl
2h 22mnonstop
Alaska Airlines Logo
8:04 pm - 10:58 pmSEA  Seattle/Tacoma Intl-BIL Billings Logan Intl
1h 54mnonstop
$237Alaska Airlines
Thu, Dec 24 - Sun, Jan 3
Alaska Airlines Logo
11:56 am - 1:14 pmBIL  Billings Logan Intl-SEA Seattle/Tacoma Intl
2h 18mnonstop
Alaska Airlines Logo
8:20 am - 11:16 amSEA  Seattle/Tacoma Intl-BIL Billings Logan Intl
1h 56mnonstop
$237Alaska Airlines
Fri, Dec 25 - Wed, Jan 6
United Airlines Logo
4:15 pm - 11:16 pmBIL  Billings Logan Intl-SEA Seattle/Tacoma Intl
8h 01m1 stop Denver Intl
United Airlines Logo
8:30 am - 3:32 pmSEA  Seattle/Tacoma Intl-BIL Billings Logan Intl
6h 02m1 stop Denver Intl
$302United Airlines
Fri, Jan 22 - Mon, Jan 25
United Airlines Logo
4:13 pm - 9:17 pmBIL  Billings Logan Intl-SEA Seattle/Tacoma Intl
6h 04m1 stop Denver Intl
United Airlines Logo
5:00 am - 1:30 pmSEA  Seattle/Tacoma Intl-BIL Billings Logan Intl
7h 30m1 stop Denver Intl
$324United Airlines
Booking Insights

Price, demand and travel trends for Billings to Seattle flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

How much is a round-trip flight from Billings to Seattle?

Round-trip flights from Billings to Seattle typically range from $262 to $403. The lowest price found in the past 5 days was $227, on Alaska Airlines.

What's the cheapest day of the week to fly from Billings to Seattle?

Based on deals KAYAK users found in the last 12 months, Saturday is the cheapest day of the week to fly from Billings to Seattle. It’s 23% cheaper than the average day, while Sunday is the most expensive, with prices 23% higher.

What’s the cheapest month to fly from Billings to Seattle?

•March is the cheapest month to fly from Billings to Seattle at $242 round-trip.
•October ($451) and August ($377) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 86% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Billings to Seattle the cheapest?

Flights from Billings to Seattle are cheapest 22 weeks before departure. Booking in this window typically costs about 60% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Billings to Seattle flights

Low season

February

Cheapest flight

$149
Beat the crowds with an average 47% drop in travelers.
The most popular month to fly with an average 75% increase in travelers.
One-way flight from Billings to Seattle

When to book flights from Billings to Seattle

Are your dates flexible? Find out the best times to travel from Billings to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Billings to Seattle flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Billings to Seattle?

    These are the earliest and latest flight times available from Billings to Seattle:

    • Earliest: departs at 6:00 am and lands at 8:19 am
    • Latest: departs at 5:12 pm and lands at 7:31 pm.

    The flight takes about 2h 19m.

  • What cabin classes can I book on flights from Billings to Seattle?

    Two cabin classes are available on flights from Billings to Seattle:

    • Economy Class
    • First Class

  • How long is a flight from Billings to Seattle?

    A nonstop flight from Billings to Seattle takes 2h 19m, covering 662 miles.

  • Do I need a passport to fly from Billings to Seattle?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

  • How much should I expect to pay for a Billings to Seattle flight?

    Round-trip flights from Billings to Seattle range from $262 to $403, with an average of $330 over the past 12 months. Anything below $262 counts as a good deal.

  • How expensive are last-minute Billings to Seattle flights?

    Last-minute fares on this route (booked within two weeks of departure) run 88% above the $330 route average. Book 22 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Billings to Seattle?

    On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $328 round-trip, compared to $362 via a layover through Las Vegas Harry Reid Intl (LAS).

  • Which aircraft model is used most often on flights from Billings to Seattle?

    The Embraer 175 family is used most often on this route, operated mainly by Alaska Airlines and Hawaiian Airlines. Other aircraft seen on the route include Airbus A320-100/200 variants.

  • How are flight departures from Billings to Seattle spread across the day?

    Morning is the busiest departure period on Billings to Seattle flights, with 50% of flights leaving in that window. Afternoon departures account for 50%, evening flights for 0%, and night flights for 0%.

  • Which airlines offer Wi-Fi on Billings to Seattle flights?

    Alaska Airlines is the only airline on the Billings to Seattle route offering in-flight Wi-Fi. Pricing depends on fare class.

  • How are flight prices from Billings to Seattle looking right now?

    One-way fares from Billings to Seattle are currently lower than usual. Average one-way flight prices are about $249, which is 14% below the typical average for this route.

  • What car rental options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates averaging $61 for economy cars. Top options include:

    • Europcar
    • Fox
    • Thrifty
    • Budget
    • Dollar

  • Which airports can I use when flying from Billings to Seattle?

    Flights from Billings to Seattle usually depart from Billings Logan Intl (BIL) and arrive at Seattle/Tacoma Intl (SEA).

  • Which airports do connecting flights from Billings to Seattle pass through?

    One-stop flights from Billings to Seattle most commonly connect through:

    • Salt Lake City (SLC) - 57% of one-stop connections
    • Denver Intl (DEN) - 29% of one-stop connections
    • Las Vegas Harry Reid Intl (LAS) - 14% of one-stop connections

  • Can I save money by using flexible dates for flights from Billings to Seattle?

    Yes. Flexible dates can save you up to 37% on flights from Billings to Seattle. Saturday is the cheapest departure day at $257 round-trip on average, while Sunday is the most expensive at $407, a difference of $150.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What airlines fly from Billings to Seattle?

    Only Alaska Airlines operates flights between Billings and Seattle.

  • How much time can I save by choosing a different layover airport from Billings to Seattle?

    Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 6h 23m, compared with 6h 34m via Denver Intl (DEN) and 18h 28m via Las Vegas Harry Reid Intl (LAS).

  • What is the time difference between Billings and Seattle?

    Seattle is 1 hour behind Billings (Pacific Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are Pike Place Market, Lumen Field and Space Needle. These are among the most viewed places in Seattle on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Billings to Seattle flights?

    Among airlines operating Billings to Seattle flights:

    • Alaska Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Billings to Seattle flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Alaska Airlines: a cabin bag and a checked bag in Economy Class
    • Hawaiian Airlines: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Your guide to booking Billings to Seattle flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Saturday departure and avoid flying on Sunday. On this route, Saturday flights average $257, about $150 less than Sunday fares (37% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 22 weeks before you fly. On this route, that window historically saves about 60% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Billings to Seattle trip for March. Fares historically average $242 round-trip in that month - typically $209 less than the most expensive month, which is October (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.

    • Coast Gateway Hotel
    • Seattle Airport Marriott
    • Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

Prefer to fly direct from Billings to Seattle?

 
Find which airlines fly direct from Billings Logan Intl Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

Billings Logan Intl to Seattle/Tacoma Intl

Monday

Alaska Airlines

Alaska Airlines

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines

Alaska Airlines

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

Direct returns

Seattle/Tacoma Intl to Billings Logan Intl

Monday

Alaska Airlines

Alaska Airlines

Tuesday

Alaska Airlines

Alaska Airlines

Wednesday

Alaska Airlines

Alaska Airlines

Thursday

Alaska Airlines

Alaska Airlines

Friday

Alaska Airlines

Alaska Airlines

Saturday

Alaska Airlines

Alaska Airlines

Sunday

Alaska Airlines

Alaska Airlines

See more direct flights

More options for your flight from Billings to Seattle

Complete your trip to Seattle with a hotel stay or car rental