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 44% of people opting to fly with this airline when traveling to Idaho Falls. Keep in mind that there are 3 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.

$474 Cheap Flights from Portland to Idaho Falls in 2025/26

1 adult

0 bags

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Find the cheapest flights from Portland, Maine to Idaho Falls

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12:45 pm - 10:36 pmPWM-IDA

11h 51m2 stops

7:20 am - 10:54 pmIDA-PWM

13h 34m2 stops

$474American Airlines

Find Deal

sáb., ene. 31 - mar., feb. 3

5:17 pm - 1:27 pmPWM-IDA

22h 10m2 stops

1:58 pm - 11:37 amIDA-PWM

19h 39m2 stops

$673American Airlines

Find Deal

mié., dic. 3 - mié., dic. 10

6:00 am - 9:12 pmPWM-IDA

17h 12m3 stops

7:00 am - 2:19 pmIDA-PWM

29h 19m2 stops

$705United Airlines

Find Deal

mié., dic. 3 - mié., dic. 10

4:25 pm - 1:35 pmPWM-IDA

23h 10m2 stops

10:58 am - 11:12 pmIDA-PWM

10h 14m2 stops

$779United Airlines

Find Deal

mar., dic. 2 - sáb., dic. 6

10:35 am - 9:12 pmPWM-IDA

12h 37m3 stops

7:00 am - 9:17 pmIDA-PWM

12h 17m3 stops

$1,096United Airlines

Find Deal

mié., dic. 3 - mié., dic. 10

American Airlines flights from Portland, Maine to Idaho Falls

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

American Airlines

Jan 31

PWM12:45 pmPortland

11h 51m

2 stops

IDA10:36 pmIdaho Falls Fanning Field

Feb 3

IDA7:20 amIdaho Falls Fanning Field

13h 34m

2 stops

PWM10:54 pmPortland

$474

Find similar

American Airlines

Dec 3

PWM5:17 pmPortland

22h 10m

2 stops

IDA1:27 pmIdaho Falls Fanning Field

Dec 10

IDA1:58 pmIdaho Falls Fanning Field

19h 39m

2 stops

PWM11:37 amPortland

$673

Find similar

American Airlines

Nov 23

PWM12:47 pmPortland

11h 47m

2 stops

IDA10:34 pmIdaho Falls Fanning Field

Dec 1

IDA1:58 pmIdaho Falls Fanning Field

19h 48m

2 stops

PWM11:46 amPortland

$1,165

Find similar

United Airlines flights from Portland, Maine to Idaho Falls

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

United Airlines

Nov 23

PWM5:30 amPortland

10h 05m

2 stops

IDA1:35 pmIdaho Falls Fanning Field

Dec 1

IDA5:00 amIdaho Falls Fanning Field

8h 48m

1 stop

PWM3:48 pmPortland

$645

Find similar

United Airlines

Dec 3

PWM6:00 amPortland

17h 12m

3 stops

IDA9:12 pmIdaho Falls Fanning Field

Dec 10

IDA7:00 amIdaho Falls Fanning Field

29h 19m

2 stops

PWM2:19 pmPortland

$705

Find similar

United Airlines

Nov 23

PWM5:30 amPortland

11h 46m

2 stops

IDA3:16 pmIdaho Falls Fanning Field

Dec 1

IDA5:00 amIdaho Falls Fanning Field

16h 59m

2 stops

PWM11:59 pmPortland

$743

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

sáb. 1/31

12:45 pm-10:36 pm

2 stops11h 51m

Idaho Falls Fanning Field

mar. 2/3

7:20 am-10:54 pm

2 stops13h 34m

$474

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

mié. 12/3

5:17 pm-1:27 pm

2 stops22h 10m

Idaho Falls Fanning Field

mié. 12/10

1:58 pm-11:37 am

2 stops19h 39m

$673

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

mié. 12/3

6:00 am-9:12 pm

3 stops17h 12m

Idaho Falls Fanning Field

mié. 12/10

7:00 am-2:19 pm

2 stops29h 19m

$705

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

mar. 12/2

4:25 pm-1:35 pm

2 stops23h 10m

Idaho Falls Fanning Field

sáb. 12/6

10:58 am-11:12 pm

2 stops10h 14m

$779

PortlandIdaho Falls

PWM - IDA

PWMIDA

Portland

mié. 12/3

10:35 am-9:12 pm

3 stops12h 37m

Idaho Falls Fanning Field

mié. 12/10

7:00 am-9:17 pm

3 stops12h 17m

$1,096

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 Saturday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $654. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Friday is $955.

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 morning. Flights from Portland, Maine to Idaho Falls during this time can be as low as $654. Try not to purchase tickets in the afternoon because they tend to be around $948. 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.

Search flight deals

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 11h 51m.
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.

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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.