Find Cheap Flights from Idaho Falls to Seattle (IDA - SEA)

Flights overview

Useful information for finding cheap flights from Idaho Falls to Seattle and booking your next trip

Cheapest round-trip flights	$167	Alaska Nonstop 3 hr Sat, Feb 28 — Sun, Mar 1	The cheapest round-trip flight from Idaho Falls to Seattle is currently $167
Cheapest one-way flight	$84	Delta 1 stop 7 hr Tue, Mar 10	The cheapest one-way flight from Idaho Falls to Seattle is currently $84
Last-minute weekend getaway	$537	Delta 1 stop 5 hr Thu, Jan 29 — Mon, Feb 2	The cheapest last-minute weekend getaway from Idaho Falls to Seattle is currently $537
Cheapest business class flights	$347	Alaska Nonstop 3 hr Sat, Apr 4 — Sun, Apr 5	The cheapest business class round-trip flight from Idaho Falls to Seattle is currently $347

Fastest flight	1 hr 54 min	The fastest nonstop flight from Idaho Falls to Seattle takes 1 hr 54 min
Nonstop flights	Every day	There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from Idaho Falls to Seattle is typically December. The most expensive month to fly is typically July.

December Cheapest	Typical prices: $175–560
July Most expensive	Typical prices: $275–550

Popular airlines from Idaho Falls to Seattle

Alaska

Nonstop

from $167

Typical price: $215–520

14 weekly nonstop flights

IDA - SEA Every day
Delta

from $297

Typical price: $295–660

151 weekly connecting flights

IDA - SEA Every day
United

from $315

Typical price: $380–730

113 weekly connecting flights

IDA - SEA Every day
American

from $459

Typical price: $520–990

28 weekly connecting flights

IDA - SEA Every day

Popular airports near Idaho Falls

Idaho Falls Regional Airport (IDA)

Idaho Falls United States 8 min 2 mi
Salt Lake City International Airport (SLC)

Salt Lake City United States 3 hr 3 min 186 mi
Jackson Hole Airport (JAC)

Jackson United States 2 hr 2 min 65 mi
Friedman Memorial Airport (SUN) (SUN)

Sun Valley United States 2 hr 17 min 112 mi

Popular airports near Seattle

Seattle-Tacoma International Airport (SEA)

Seattle United States 18 min 11 mi
Paine Field (PAE)

Everett United States 31 min 21 mi
King County International Airport - Boeing Field (BFI)

Seattle United States 11 min 5 mi
Portland International Airport (PDX)

Portland United States 2 hr 44 min 140 mi

Frequently asked questions about flying from Idaho Falls to Seattle

The cheapest flights from Idaho Falls to Seattle are usually in December. Typical ticket prices in December range from $175 to $560.

The cheapest round-trip flight from Idaho Falls to Seattle recently found on Google Flights was with Alaska from $167. The cheapest one-way flight was with Delta from $84.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Alaska flight from Idaho Falls to Seattle is $167, flying from Feb 28 to Mar 1.
The cheapest Delta flight from Idaho Falls to Seattle is $297, flying from Apr 23 to Apr 27.
The cheapest United flight from Idaho Falls to Seattle is $315, flying from Feb 27 to Mar 2.
The cheapest American flight from Idaho Falls to Seattle is $459, flying from Mar 7 to Mar 9.

The cheapest round-trip flight from Idaho Falls to Seattle starts at $167 from Sat, Feb 28 to Sun, Mar 1. The cheapest one-way flight starts at $84 and departs on Tue, Mar 10.

1 hr 54 min is the shortest flight time from Idaho Falls to Seattle.

Most visitors come May–Sep, a period encompassing events such as the Seattle International Film Festival (May); Seafair (Jul), a summer festival including boat races, marathons and parades; and Bumbershoot (Sep), an international music and arts festival. Rainy season is Nov–May, though rain is possible year-round.

It's easy to use Google Flights to find the cheapest days to fly from Idaho Falls to Seattle.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

What counts as the best airline for your flights from Idaho Falls to Seattle really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Idaho Falls to Seattle.

In terms of nonstop flights, Alaska is the most popular. Alaska offers 14 nonstop flights per week. Alaska flies from Idaho Falls Regional Airport (IDA) to Seattle-Tacoma International Airport (SEA) .

In terms of flights, Delta is the most popular. Delta offers 151 connecting flights per week. Delta flies from Idaho Falls Regional Airport (IDA) to Seattle-Tacoma International Airport (SEA) .

Other popular airlines flying from Idaho Falls to Seattle are:

United offers 113 connecting flights per week. United flies from Idaho Falls Regional Airport (IDA) to Seattle-Tacoma International Airport (SEA) .
American offers 28 connecting flights per week. American flies from Idaho Falls Regional Airport (IDA) to Seattle-Tacoma International Airport (SEA) .

The number of connecting flights refers to distinct flights with at least one stop between Idaho Falls and Seattle.

The cheapest round-trip flight from Idaho Falls to Seattle recently found on Google Flights was with Alaska from $167. The cheapest one-way flight was with Delta from $84.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Alaska flight from Idaho Falls to Seattle is $167, flying from Feb 28 to Mar 1.
The cheapest Delta flight from Idaho Falls to Seattle is $297, flying from Apr 23 to Apr 27.
The cheapest United flight from Idaho Falls to Seattle is $315, flying from Feb 27 to Mar 2.
The cheapest American flight from Idaho Falls to Seattle is $459, flying from Mar 7 to Mar 9.

Alaska flies direct from Idaho Falls to Seattle.

There are 14 Alaska direct flights from Idaho Falls to Seattle per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

The cheapest last-minute deal between Idaho Falls and Seattle at price $537 is offered by Delta from Thu, Jan 29 to Mon, Feb 2.

Alaska flies direct from Idaho Falls to Seattle.

There are 14 Alaska direct flights from Idaho Falls to Seattle per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

There are direct flights from Idaho Falls to Seattle on a daily basis.

The cheapest direct (nonstop) round-trip flights between Idaho Falls and Seattle start at $167 from Sat, Feb 28 to Sun, Mar 1 with Alaska.

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Idaho Falls to Seattle, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.

The cheapest business class round-trip flights between Idaho Falls and Seattle start at $347 from Sat, Apr 4 to Sun, Apr 5 with Alaska.

The cheapest economy class round-trip flights between Idaho Falls and Seattle start at $167 from Sat, Feb 28 to Sun, Mar 1.

To book business class trips from Idaho Falls to Seattle, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.

The best last-minute getaway deal for the next weekend between Idaho Falls and Seattle starts at $537 from Thu, Jan 29 to Mon, Feb 2 with Delta.

The cheapest last-minute deal between Idaho Falls and Seattle at price $537 is offered by Delta from Thu, Jan 29 to Mon, Feb 2.

To find last-minute flight deals from Idaho Falls to Seattle, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.