What airlines fly to Idaho Falls?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Idaho Falls from Portland, Maine according to our data. American Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Idaho Falls. Keep in mind that there are 4 different airlines that fly to Idaho Falls on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Portland Airport to Idaho Falls Fanning Field Airport?

Prices for flights from Portland Airport to Idaho Falls Fanning Field Airport are refreshed on a daily basis.

How old do you have to be to fly from Portland Airport to Idaho Falls Fanning Field Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Idaho Falls Fanning Field Airport.

What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?

The travel and health documents required for your trip to Idaho Falls Fanning Field Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho Falls Fanning Field Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$429 Cheap Flights from Portland to Idaho Falls in 2025/26

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Find the cheapest flights from Portland, Maine to Idaho Falls

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12:45 pm - 10:15 pmPWM-IDA

11h 30m2 stops

1:15 pm - 1:05 amIDA-PWM

33h 50m2 stops

$429Delta

Find Deal

Tue, Oct 28 - Sat, Nov 1

6:00 am - 5:46 pmPWM-IDA

13h 46m2 stops

7:00 am - 3:48 pmIDA-PWM

6h 48m1 stop

$564United Airlines

Find Deal

Tue, Oct 28 - Sat, Nov 1

7:22 pm - 10:52 pmPWM-IDA

29h 30m2 stops

7:00 am - 3:48 pmIDA-PWM

6h 48m1 stop

$574United Airlines

Find Deal

Tue, Oct 28 - Sat, Nov 1

3:20 pm - 9:48 amPWM-IDA

20h 28m1 stop

7:00 am - 3:48 pmIDA-PWM

6h 48m1 stop

$703United Airlines

Find Deal

Tue, Oct 28 - Sat, Nov 1

5:41 pm - 9:48 amPWM-IDA

18h 07m2 stops

5:00 am - 9:11 amIDA-PWM

26h 11m2 stops

$738United Airlines

Find Deal

Wed, Oct 15 - Sun, Oct 19

10:40 am - 8:52 pmPWM-IDA

12h 12m2 stops

5:00 am - 3:48 pmIDA-PWM

8h 48m1 stop

$753United Airlines

Find Deal

Wed, Oct 15 - Sun, Oct 19

3:20 pm - 9:03 pmPWM-IDA

7h 43m1 stop

7:00 am - 3:48 pmIDA-PWM

6h 48m1 stop

$886United Airlines

Find Deal

Tue, Oct 28 - Sat, Nov 1

3:39 pm - 8:52 pmPWM-IDA

7h 13m1 stop

5:00 am - 3:48 pmIDA-PWM

8h 48m1 stop

$954United Airlines

Find Deal

Wed, Oct 15 - Sun, Oct 19

United Airlines flights from Portland, Maine to Idaho Falls

Our best United Airlines deals on Portland, Maine to Idaho Falls flight tickets

United Airlines

Oct 28

PWM6:00 amPortland

13h 46m

2 stops

IDA5:46 pmIdaho Falls Fanning Field

Nov 1

IDA7:00 amIdaho Falls Fanning Field

6h 48m

1 stop

PWM3:48 pmPortland

$564

Find similar

United Airlines

Oct 28

PWM7:22 pmPortland

29h 30m

2 stops

IDA10:52 pmIdaho Falls Fanning Field

Nov 1

IDA7:00 amIdaho Falls Fanning Field

6h 48m

1 stop

PWM3:48 pmPortland

$574

Find similar

United Airlines

Oct 28

PWM3:20 pmPortland

20h 28m

1 stop

IDA9:48 amIdaho Falls Fanning Field

Nov 1

IDA7:00 amIdaho Falls Fanning Field

6h 48m

1 stop

PWM3:48 pmPortland

$703

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Portland, Maine to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

Tue 10/28

12:45 pm-10:15 pm

2 stops11h 30m

Idaho Falls Fanning Field

Sat 11/1

1:15 pm-1:05 am

2 stops33h 50m

$429

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

Tue 10/28

6:00 am-5:46 pm

2 stops13h 46m

Idaho Falls Fanning Field

Sat 11/1

7:00 am-3:48 pm

1 stop6h 48m

$564

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

Tue 10/28

7:22 pm-10:52 pm

2 stops29h 30m

Idaho Falls Fanning Field

Sat 11/1

7:00 am-3:48 pm

1 stop6h 48m

$574

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

Tue 10/28

3:20 pm-9:48 am

1 stop20h 28m

Idaho Falls Fanning Field

Sat 11/1

7:00 am-3:48 pm

1 stop6h 48m

$703

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

Wed 10/15

5:41 pm-9:48 am

2 stops18h 07m

Idaho Falls Fanning Field

Sun 10/19

5:00 am-9:11 am

2 stops26h 11m

$738

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

Wed 10/15

10:40 am-8:52 pm

2 stops12h 12m

Idaho Falls Fanning Field

Sun 10/19

5:00 am-3:48 pm

1 stop8h 48m

$753

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

Tue 10/28

3:20 pm-9:03 pm

1 stop7h 43m

Idaho Falls Fanning Field

Sat 11/1

7:00 am-3:48 pm

1 stop6h 48m

$886

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

Wed 10/15

3:39 pm-8:52 pm

1 stop7h 13m

Idaho Falls Fanning Field

Sun 10/19

5:00 am-3:48 pm

1 stop8h 48m

$954

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Portland, Maine to Idaho Falls

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Idaho Falls?

Our data shows that Tuesday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $618. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Wednesday is $865.

What is the cheapest time of day to depart on your flight to Idaho Falls?

Our most recent data shows that the best time of day to fly to Idaho Falls is in the evening. Flights from Portland, Maine to Idaho Falls during this time can be as low as $523. Try not to purchase tickets in the morning because they tend to be around $789. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from Portland, Maine to Idaho Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Portland, Maine to Idaho Falls according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland, Maine to Idaho Falls (PWM to IDA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Idaho Falls

Direct flights	None

There are no direct flights from Portland, Maine to Idaho Falls. There are no popular flight routes from Portland, Maine to Idaho Falls.

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How far is Portland to Idaho Falls Fanning Field by plane?
The distance between Portland and Idaho Falls Fanning Field is about 2067.7 mi. A reasonable flight in good conditions will take 7h 13m.
When did momondo last update prices for flights from Portland Airport to Idaho Falls Fanning Field Airport?
Prices for flights from Portland Airport to Idaho Falls Fanning Field Airport are refreshed on a daily basis.
How old do you have to be to fly from Portland Airport to Idaho Falls Fanning Field Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Idaho Falls Fanning Field Airport.
What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?
The travel and health documents required for your trip to Idaho Falls Fanning Field Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho Falls Fanning Field Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Rexburg

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Idaho Falls?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Idaho Falls from Portland.

Can I find flights from Portland to Idaho Falls with flexible booking policies on momondo?

All flight searches from Portland to Idaho Falls on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Portland to Idaho Falls?

momondo provides multiple filters to help you find the best flight to Idaho Falls from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Portland to Idaho Falls right now. Can momondo alert me if prices change?

Price alerts on flights to Idaho Falls from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.