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Idaho Falls Regional Airport to Seattle-Tacoma International Airport flight

Explore the cheapest one-way and round-trip flights from Idaho Falls Regional Airport to Seattle-Tacoma International Airport over the next 90 days, with one-way fares from RUB 14,257 and round-trip from RUB 26,098. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        IDA 06:09
        2h 11m
        Nonstop
        SEA 07:20
        Idaho Falls - Seattle | Mon, Oct 19 | Alaska Airlines
        SEA 12:30
        1h 50m
        Nonstop
        IDA 15:20
        Seattle - Idaho Falls | Mon, Oct 26 | Alaska Airlines
        RUB 26,098 RUB 45,611
        43% off
        43% off
        RUB 45,611 RUB 26,098
      • IDA 06:09
        2h 11m
        Nonstop
        SEA 07:20
        Idaho Falls - Seattle | Sun, Oct 11 | Alaska Airlines
        SEA 20:10
        1h 49m
        Nonstop
        IDA 22:59
        Seattle - Idaho Falls | Sun, Oct 18 | Alaska Airlines
        RUB 26,579 RUB 45,611
        42% off
        42% off
        RUB 45,611 RUB 26,579
      • IDA 06:09
        2h 11m
        Nonstop
        SEA 07:20
        Idaho Falls - Seattle | Thu, Oct 22 | Alaska Airlines
        SEA 20:10
        1h 49m
        Nonstop
        IDA 22:59
        Seattle - Idaho Falls | Fri, Oct 23 | Alaska Airlines
        RUB 27,262 RUB 45,611
        40% off
        40% off
        RUB 45,611 RUB 27,262
      • IDA 13:58
        2h 6m
        Nonstop
        SEA 15:04
        Idaho Falls - Seattle | Thu, Oct 29 | Alaska Airlines
        SEA 12:30
        1h 50m
        Nonstop
        IDA 15:20
        Seattle - Idaho Falls | Fri, Oct 30 | Alaska Airlines
        RUB 28,312
        38% off
        RUB 45,611 RUB 28,312
      • IDA 06:09
        2h 11m
        Nonstop
        SEA 07:20
        Idaho Falls - Seattle | Tue, Oct 13 | Alaska Airlines
        SEA 12:30
        1h 50m
        Nonstop
        IDA 15:20
        Seattle - Idaho Falls | Tue, Oct 20 | Alaska Airlines
        RUB 31,221
        32% off
        RUB 45,611 RUB 31,221
      • IDA 13:58
        2h 6m
        Nonstop
        SEA 15:04
        Idaho Falls - Seattle | Wed, Oct 14 | Alaska Airlines
        SEA 12:30
        1h 50m
        Nonstop
        IDA 15:20
        Seattle - Idaho Falls | Wed, Oct 21 | Alaska Airlines
        RUB 31,221
        32% off
        RUB 45,611 RUB 31,221
      • IDA 06:09
        2h 11m
        Nonstop
        SEA 07:20
        Idaho Falls - Seattle | Sat, Oct 17 | Alaska Airlines
        SEA 12:30
        1h 50m
        Nonstop
        IDA 15:20
        Seattle - Idaho Falls | Sat, Oct 24 | Alaska Airlines
        RUB 33,296
        27% off
        RUB 45,611 RUB 33,296
      • IDA 06:00
        4h 10m
        1 stop
        SEA 09:10
        Idaho Falls - Seattle | Mon, Oct 19 | Delta Air Lines
        SEA 07:20
        5h 1m
        1 stop
        IDA 13:21
        Seattle - Idaho Falls | Mon, Oct 26 | Alaska Airlines
        RUB 28,084
        38% off
        RUB 45,611 RUB 28,084
      • IDA 18:56
        4h 9m
        1 stop
        SEA 22:05
        Idaho Falls - Seattle | Sun, Oct 18 | Delta Air Lines
        SEA 05:30
        5h 52m
        1 stop
        IDA 12:22
        Seattle - Idaho Falls | Tue, Oct 20 | Delta Air Lines
        RUB 29,665
        35% off
        RUB 45,611 RUB 29,665
      • IDA 06:00
        4h 10m
        1 stop
        SEA 09:10
        Idaho Falls - Seattle | Thu, Oct 22 | Delta Air Lines
        SEA 20:10
        1h 49m
        Nonstop
        IDA 22:59
        Seattle - Idaho Falls | Fri, Oct 23 | Alaska Airlines
        RUB 30,538
        33% off
        RUB 45,611 RUB 30,538
      • IDA 18:56
        4h 9m
        1 stop
        SEA 22:05
        Idaho Falls - Seattle | Wed, Nov 4 | Delta Air Lines
        SEA 05:30
        5h 52m
        1 stop
        IDA 12:22
        Seattle - Idaho Falls | Fri, Nov 6 | Delta Air Lines
        RUB 31,095
        32% off
        RUB 45,611 RUB 31,095
      • IDA 13:05
        4h 50m
        1 stop
        SEA 16:55
        Idaho Falls - Seattle | Tue, Nov 3 | Delta Air Lines
        SEA 07:15
        4h 7m
        1 stop
        IDA 12:22
        Seattle - Idaho Falls | Thu, Nov 5 | Delta Air Lines
        RUB 32,613
        28% off
        RUB 45,611 RUB 32,613
      • IDA 13:00
        17h 25m
        1 stop
        SEA 14:00
        Idaho Falls - Seattle | Fri, Oct 9 | Normal Airline
        SEA 15:00
        6h
        Nonstop
        IDA 16:00
        Seattle - Idaho Falls | Sun, Oct 11 | Normal Airline
        More cheap flights
        More cheap flights
      • Cheapest nonstop
        IDA 13:53
        2h 4m
        Nonstop
        SEA 14:57
        Idaho Falls - Seattle | Sat, Nov 14 | Alaska Airlines
        RUB 18,445 RUB 28,057
        34% off
        34% off
        RUB 28,057 RUB 18,445
      • IDA 13:58
        2h 6m
        Nonstop
        SEA 15:04
        Idaho Falls - Seattle | Tue, Nov 3 | Alaska Airlines
        RUB 18,470 RUB 28,057
        34% off
        34% off
        RUB 28,057 RUB 18,470
      • IDA 13:58
        2h 6m
        Nonstop
        SEA 15:04
        Idaho Falls - Seattle | Wed, Nov 4 | Alaska Airlines
        RUB 18,508 RUB 28,057
        34% off
        34% off
        RUB 28,057 RUB 18,508
      • IDA 13:58
        2h 6m
        Nonstop
        SEA 15:04
        Idaho Falls - Seattle | Tue, Oct 27 | Alaska Airlines
        RUB 20,266
        28% off
        RUB 28,057 RUB 20,266
      • IDA 13:58
        2h 6m
        Nonstop
        SEA 15:04
        Idaho Falls - Seattle | Fri, Oct 30 | Alaska Airlines
        RUB 20,266
        28% off
        RUB 28,057 RUB 20,266
      • IDA 13:58
        2h 6m
        Nonstop
        SEA 15:04
        Idaho Falls - Seattle | Thu, Oct 22 | Alaska Airlines
        RUB 20,481
        27% off
        RUB 28,057 RUB 20,481
      • IDA 13:58
        2h 6m
        Nonstop
        SEA 15:04
        Idaho Falls - Seattle | Fri, Oct 23 | Alaska Airlines
        RUB 20,481
        27% off
        RUB 28,057 RUB 20,481
      • IDA 20:28
        15h 31m
        1 stop
        SEA 10:59
        Idaho Falls - Seattle | Wed, Nov 4 | Allegiant Air
        RUB 14,257
        49% off
        RUB 28,057 RUB 14,257
      • IDA 19:47
        22h
        1 stop
        SEA 16:47
        Idaho Falls - Seattle | Sat, Nov 14 | Allegiant Air
        RUB 14,510
        48% off
        RUB 28,057 RUB 14,510
      • IDA 18:56
        4h 9m
        1 stop
        SEA 22:05
        Idaho Falls - Seattle | Tue, Nov 3 | Delta Air Lines
        RUB 19,431
        31% off
        RUB 28,057 RUB 19,431
      • IDA 18:56
        4h 9m
        1 stop
        SEA 22:05
        Idaho Falls - Seattle | Wed, Nov 4 | Delta Air Lines
        RUB 19,431
        31% off
        RUB 28,057 RUB 19,431
      • IDA 18:57
        6h 2m
        1 stop
        SEA 23:59
        Idaho Falls - Seattle | Sat, Nov 14 | Delta Air Lines
        RUB 19,431
        31% off
        RUB 28,057 RUB 19,431
      • IDA 13:00
        17h 25m
        1 stop
        SEA 14:00
        Idaho Falls - Seattle | Fri, Oct 9 | Normal Airline
        More cheap flights
        More cheap flights

Displayed flight fares from Idaho Falls Regional Airport to Seattle-Tacoma International Airport are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Which airline offers the cheapest flights from Idaho Falls Regional Airport to Seattle-Tacoma International Airport?

The cheapest airline flying from Idaho Falls Regional Airport to Seattle-Tacoma International Airport is Allegiant Air (from RUB 14,257) among 5 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Allegiant Air
From RUB 14,257
Alaska Airlines
From RUB 18,445
Delta Air Lines
From RUB 19,431
American Airlines
From RUB 36,610
United Airlines
From RUB 39,570

Find more flights and airlines

What is the flight schedule from Idaho Falls Regional Airport to Seattle-Tacoma International Airport?

Check on the flight schedule from Idaho Falls to Seattle to find the flight that matches your travel plan.

Flight info.
Departure
Arrival
Weekly Schedule

  1. AS3027

    Idaho Falls Regional Airport

    13:58

    IDA

    2h 6m

    15:04

    SEA

    S M T W T F S
    Search

  2. AS3423

    Idaho Falls Regional Airport

    06:09

    IDA

    2h 11m

    07:20

    SEA

    S M T W T F S
    Search

  3. AS3322

    Idaho Falls Regional Airport

    15:57

    IDA

    1h 52m

    Nonstop

    16:49

    PDX

    S M T W T F S
    Search

  4. AS2349

    Portland International Airport

    17:48

    PDX

    1h 1m

    Nonstop

    18:49

    SEA

    S M T W T F S

  5. DL3895

    Idaho Falls Regional Airport

    18:45

    IDA

    1h 15m

    Nonstop

    20:00

    SLC

    S M T W T - S
    Search

  6. DL2016

    Salt Lake City International Airport

    20:45

    SLC

    2h 25m

    Nonstop

    22:10

    SEA

    S M T W T F S

  7. DL2335

    Idaho Falls Regional Airport

    06:00

    IDA

    1h 15m

    Nonstop

    07:15

    SLC

    S M T W T F S
    Search

  8. DL2874

    Salt Lake City International Airport

    08:00

    SLC

    2h 33m

    Nonstop

    09:33

    SEA

    S M T W T F S

  9. DL3765

    Idaho Falls Regional Airport

    13:10

    IDA

    1h 7m

    Nonstop

    14:17

    SLC

    S M T W T F S
    Search

  10. DL2817

    Salt Lake City International Airport

    15:35

    SLC

    2h 18m

    Nonstop

    16:53

    SEA

    S M T W T F S

  11. AS3322

    Idaho Falls Regional Airport

    15:57

    IDA

    1h 52m

    Nonstop

    16:49

    PDX

    S M T W T F S
    Search

  12. AS2426

    Portland International Airport

    19:37

    PDX

    56m

    Nonstop

    20:33

    SEA

    S M T W T F S

  13. DL3895

    Idaho Falls Regional Airport

    18:45

    IDA

    1h 15m

    Nonstop

    20:00

    SLC

    S M T W T - S
    Search

  14. DL2998

    Salt Lake City International Airport

    22:45

    SLC

    2h 26m

    Nonstop

    00:11

    SEA

    S - - W T - S

  15. G4071

    Idaho Falls Regional Airport

    17:08

    IDA

    1h 43m

    Nonstop

    17:51

    LAS

    S - - - T - -
    Search

  16. F92407

    Harry Reid International Airport

    08:05

    LAS

    2h 54m

    Nonstop

    10:59

    SEA

    S - T W T - S

  17. G4071

    Idaho Falls Regional Airport

    17:08

    IDA

    1h 43m

    Nonstop

    17:51

    LAS

    S - - - T - -
    Search

  18. AS785

    Harry Reid International Airport

    11:50

    LAS

    2h 52m

    Nonstop

    14:42

    SEA

    S M T W T F S
Find more flights and airlines

About Idaho Falls Regional Airport and Seattle-Tacoma International Airport

Learn about Idaho Falls Regional Airport (IDA) and Seattle-Tacoma International Airport (SEA) — including location, terminals, transportation, and travel tips.

Flight distance 909.68 km
Cheapest one-way ticket price RUB 14,257
Cheapest return ticket price RUB 26,098

FAQs for Idaho Falls Regional Airport to Seattle-Tacoma International Airport Flights

  • How long is the flight from Idaho Falls Regional Airport to Seattle-Tacoma International Airport?

    Idaho Falls Regional Airport to Seattle-Tacoma International Airport takes about 1 hour 34 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 2 daily flights from Idaho Falls Regional Airport (IDA) to Seattle-Tacoma International Airport (SEA).
  • The earliest flight from Idaho Falls Regional Airport to Seattle-Tacoma International Airport departs at 06:18, and the last departs at 14:01, with about 2 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Idaho Falls Regional Airport (IDA) to Seattle-Tacoma International Airport (SEA) is quite popular. Without considering departure times or holidays, tickets cost around RUB 22,771 in October, the most expensive month to book this route.
  • The earliest flight departs from Idaho Falls Regional Airport at 06:15 and arrives in Seattle-Tacoma International Airport at 07:11.
    • The distance from Seattle-Tacoma International Airport to downtown is about 17 km, by taxi about 30 minutes.
  • Hawaiian Airlines is a very popular airline operating an average of 12 flights per month.
  • One-way flights from Idaho Falls Regional Airport to Seattle-Tacoma International Airport currently start from RUB 14,257, and round-trip fares start from RUB 26,098. The current lowest fare is a Allegiant Air flight departing on Wed, Nov 4; prices may vary depending on availability.
  • Yes. Alaska Airlines operate direct flights from Idaho Falls Regional Airport to Seattle-Tacoma International Airport, with an average flight time of 1 hour 32 minutes, and around 14 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Idaho Falls Regional Airport to Seattle-Tacoma International Airport is RUB 68,268. Prices may vary depending on the departure date, airline, and availability.
  • Idaho Falls Regional Airport to Seattle-Tacoma International Airport operates around 14 weekly flights, mainly by Alaska Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Idaho Falls Regional Airport and Seattle-Tacoma International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

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Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.