Cheap flights from Idaho Falls to Seattle

Idaho Falls
IDA
Seattle-Tacoma
SEA

Flight deals from Idaho Falls to Seattle

Below you can see the best deals on flights Idaho Falls — Seattle for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 6 October, from $132.

Top 10 cheap flights from Idaho Falls to Seattle

AS
$ 183

Idaho Falls — Seattle

06:18—07:20
16 Sep 2026
2 h 2 m
Direct flight
AS
$ 183

Idaho Falls — Seattle

14:01—15:07
16 Sep 2026
2 h 6 m
Direct flight
AS
$ 204

Idaho Falls — Seattle

06:18—07:20
12 Sep 2026
2 h 2 m
Direct flight
AS
$ 204

Idaho Falls — Seattle

14:01—15:07
11 Sep 2026
2 h 6 m
Direct flight
AS
$ 204

Idaho Falls — Seattle

06:18—07:20
9 Sep 2026
2 h 2 m
Direct flight
AS
$ 204

Idaho Falls — Seattle

14:01—15:07
9 Sep 2026
2 h 6 m
Direct flight
AS
$ 204

Idaho Falls — Seattle

06:18—07:20
10 Sep 2026
2 h 2 m
Direct flight
AS
$ 204

Idaho Falls — Seattle

06:18—07:20
15 Sep 2026
2 h 2 m
Direct flight
AS
$ 204

Idaho Falls — Seattle

14:01—15:07
15 Sep 2026
2 h 6 m
Direct flight
DL
DL
$ 206

Idaho Falls — Seattle

13:05—16:50
12 Sep 2026
4 h 45 m
1 stop

Prices were found in the last 72 hours and may change — check the exact price when you continue.

About the Idaho Falls — Seattle flight

Looking for cheap flights from Idaho Falls to Seattle? Compare fares from different airlines, check the flight schedule and travel time — and book your Idaho Falls — Seattle ticket online at the best price.

The route has direct flights — around 72 flights per week, flights are operated by Alaska Airlines, Hawaiian Airlines, a nonstop flight takes about 2 h 5 min, the distance between the cities is around 924 km.

Planning your trip? You may find our Seattle travel guide, how to get from the airport into town and Seattle weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $132Min. price
OctoberCheapest
AugustPeak season
YesDirect flights
924 kmDistance
2 h 5 minTravel time
2Airlines
72 / wkFlights

Flight schedule from Idaho Falls to Seattle

The table shows direct flights from Idaho Falls to Seattle on the selected date. The flight takes approximately 2 h 5 min. Regular flights are operated by Alaska Airlines and Hawaiian Airlines. Departures from Idaho Falls Regional Airport airports, arrivals at Seattle-Tacoma International Airport and Paine Field.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 17 Aug 2026

Flight ticket prices by day: Idaho Falls — Seattle

Below is a calendar of the lowest flight ticket prices for Idaho Falls — Seattle by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $132 in October, and the most expensive are around $229 in August. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Idaho Falls to Seattle by month. Tickets are usually cheapest in February (around $160) and priciest in July (about $226) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$166lowMay$184mediumSep$196medium
Feb$160lowJun$220highOct$160low
Mar$196mediumJul$226highNov$202medium
Apr$166lowAug$214highDec$220high

Some values are estimated based on seasonality.

When to fly

Weather in Seattle: it is warmest in August (up to 25 °C on average) and coolest in December (around 8 °C). The driest month is July.

Tickets are usually cheapest in October and most expensive in August. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · Seattle

Dry and wet days · Seattle

Wind speed and direction · Seattle

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How to get the best deal on a Idaho Falls — Seattle ticket

  • Book ahead: fares for Idaho Falls — Seattle are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • The cheapest month to fly to Seattle is usually October — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Idaho Falls — Seattle route are operated by 2 airlines; Alaska Airlines runs the most flights (around 92% of all flights). Compare carriers, flight shares and schedules below.

  • Alaska AirlinesAS
    22x/week
    WebsiteFleet: 31545M pax/year
    • Direct flight IDA → SEA22x/week
      Duration
      2h 2m
      Days
      MTWTFSS
    91.7%Open →
  • Hawaiian AirlinesHA
    2x/week
    WebsiteFleet: 7511M pax/year
    • Direct flight IDA → SEA2x/week
    8.3%

Cities and airports on the Idaho Falls — Seattle route

Flights Idaho Falls — Seattle depart from Idaho Falls Regional Airport and arrive at Seattle-Tacoma International Airport and Paine Field. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Idaho Falls

IDA
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

Seattle

SEA
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the Idaho Falls — Seattle flight

How long is the flight from Idaho Falls to Seattle?

A nonstop Idaho Falls — Seattle flight takes about 2 h 5 min — the distance between the cities is around 924 km.

How far is it from Idaho Falls to Seattle?

The distance from Idaho Falls to Seattle is about 924 km, which a nonstop flight covers in around 2 h 5 min.

Are there direct flights from Idaho Falls to Seattle?

Yes, there are nonstop flights Idaho Falls — Seattle — around 72 flights per week.

Which airlines fly from Idaho Falls to Seattle?

Airlines operating Idaho Falls — Seattle include Alaska Airlines, Hawaiian Airlines. See the full list with schedules in the "Airlines" section on this page.

Which airports do Idaho Falls — Seattle flights use?

Flights from Idaho Falls depart from Idaho Falls Regional Airport, and arrive at Seattle-Tacoma International Airport, Paine Field. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Idaho Falls to Seattle?

The price of a Idaho Falls — Seattle ticket depends on your travel date, season and demand: it is usually cheapest to fly in October, and most expensive in August. Tickets typically cost between $132 and $229. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Idaho Falls — Seattle?

Flights Idaho Falls — Seattle are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is October. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Idaho Falls to Seattle?

To catch a low fare Idaho Falls — Seattle, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually October.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Idaho Falls

See all
DenverSalt Lake CityDallasPortlandChicagoPhoenixMissoulaTri-CitiesRenoRapid CityGreat FallsLas VegasManhattanCheyenne

Where else you can fly from Seattle

See all
Los AngelesAnchorageVancouverSan FranciscoPhoenixSan DiegoSan JoseSpokanePortlandSanta AnaNew York CityBoiseDenverChicagoDallasSalt Lake CitySacramentoLas VegasRedmondBostonAtlantaHonoluluWashington, D.C.MinneapolisPascoAustinBurbankFairbanksEugeneJuneauNashvilleHoustonCalgaryBozemanDetroitPalm SpringsMissoulaMedfordRenoOrlando

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