A waterfall cascading into a river surrounded by cliffs and vegetation.

Flights to Southwest Idaho, Idaho from NT$6,903

View NT$3,770 flight on Sat, 2026/10/3Opens in a new window

Popular airlines

  • Alaska Airlines

  • Delta

  • United

  • American Airlines

  • Southwest Airlines

  • Frontier Airlines

  • Air Canada

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 45% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to Southwest Idaho?

Prices were available within the past 7 days and start at NT$3,770 for one-way flights and NT$6,903 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
United
American Airlines
STARLUX Airlines
China Airlines

Frequently asked questions

How do I find cheap flights to Southwest Idaho that have flexible change policies?
It's as easy as 1-2-3 with Expedia. Step 1: Type in your preferred dates and destination and click on the "Search" button. Step 2: Check "No change fee" below the "Flexible change policies" filter on the top left of your screen. Step 3. Bag a flexible and cheap fare to Southwest Idaho.
Which airlines fly to Southwest Idaho?
You can choose from various airlines that offer flights into or near Southwest Idaho. Here are some of the best of them:
  • Alaska Airlines - 785 flights to or near Southwest Idaho each month, including 754 flights to Boise Airport (BOI) and 30 flights to Friedman Memorial Airport (SUN) per month.
  • Delta Air Lines - 550 flights to or near Southwest Idaho each month, including 489 flights to Boise Airport (BOI) and 60 flights to Friedman Memorial Airport (SUN) per month.
  • United Airlines - 347 flights to or near Southwest Idaho each month, including 303 flights to Boise Airport (BOI) and 43 flights to Friedman Memorial Airport (SUN) per month.
How can I find cheap tickets to Southwest Idaho?
One of the easiest ways to find cheap tickets to Southwest Idaho is to be flexible with your travel dates. Search for your flights, then click "flexible dates" above the results. It will reveal the cheapest prices for nearby days. The lowest price for a flight to Southwest Idaho in the last seven days was NT$6,903. Booking well ahead of time will generally help you get an even bigger bargain.
How much is a flight to Southwest Idaho?
The price of a round-trip airfare to Southwest Idaho in the last seven days ranged between NT$6,903 and NT$34,471. If you were heading one way from Portland (PDX), you could have landed a low-cost fare from just NT$3,770.
What are the most popular airports to fly into in Southwest Idaho?
Pack your suitcase and cruise into one of these busy Southwest Idaho airports:
  • Boise Airport (BOI) - 1,994 flights per month.
  • Friedman Memorial Airport (SUN) - 134 flights per month.
When is the cheapest time to fly to Southwest Idaho?
Take off to Southwest Idaho earlier in the week and you'll usually be rewarded with cheaper fares. Tuesday is generally the cheapest day to hop on a plane, followed by Monday. If you'd like to avoid the costliest flights, stay away from Saturdays.
How much is a plane ticket to Southwest Idaho?
In the last seven days, tickets ranged between NT$6,903 and NT$34,471. Scroll through our great deals to Southwest Idaho, pick your favorite and get ready for your next fun vacation!
What months are the cheapest to book a flight to Southwest Idaho?
To bag cheap flights to Southwest Idaho, book sometime in February when the price of fares are at their lowest. The most expensive time to book? In the U.S, it's the month of December.

Travel information

Destination airport
Boise
Destination airport IATA code
BOI
Destination city name
Boise
Roundtrip price
NT$6,991

Trending flights to Southwest Idaho

Prices were available within the past 7 days and start at NT$3,770 for one-way flights and NT$6,903 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

STARLUX Airlines

Explore a world of travel with Expedia

*Available to Expedia members.