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Cheap flights from Boston to Idaho Falls from $210

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Idaho Falls departing on 5/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Boston to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
4:50 pm - 10:40 pm
BOS
-
IDA
7h 50m
1 stop
Delta Logo
6:54 pm - 6:20 am
IDA
-
BOS
9h 26m
1 stop
$369Delta
Sat, May 2 - Sun, May 10
American Airlines Logo
2:02 pm - 11:39 pm
BOS
-
IDA
11h 37m
2 stops
American Airlines Logo
7:48 am - 8:40 pm
IDA
-
BOS
10h 52m
1 stop
$374American Airlines
Sat, May 2 - Sat, May 9
American Airlines Logo
12:57 pm - 11:39 pm
BOS
-
IDA
12h 42m
2 stops
American Airlines Logo
7:48 am - 12:04 am
IDA
-
BOS
14h 16m
2 stops
$380American Airlines
Tue, Apr 28 - Sat, May 2
American Airlines Logo
6:00 am - 1:44 pm
BOS
-
IDA
9h 44m
1 stop
American Airlines Logo
12:12 pm - 11:10 pm
IDA
-
BOS
8h 58m
1 stop
$396American Airlines
Sat, Aug 22 - Sat, Aug 29
Alaska Airlines Logo
10:30 am - 2:27 pm
BOS
-
IDA
29h 57m
1 stop
Alaska Airlines Logo
4:00 pm - 6:02 am
IDA
-
BOS
12h 02m
1 stop
$419Alaska Airlines
Fri, Sep 18 - Mon, Sep 21
Delta Logo
6:15 am - 12:26 pm
BOS
-
IDA
8h 11m
1 stop
Delta Logo
6:58 pm - 6:00 am
IDA
-
BOS
9h 02m
1 stop
$428Delta
Thu, Apr 23 - Sun, May 3
American Airlines Logo
11:22 am - 10:15 pm
BOS
-
IDA
12h 53m
2 stops
American Airlines Logo
2:08 pm - 12:04 am
IDA
-
BOS
7h 56m
1 stop
$430American Airlines
Thu, May 28 - Tue, Jun 2
Delta Logo
3:10 pm - 10:40 pm
BOS
-
IDA
9h 30m
2 stops
Delta Logo
6:54 pm - 6:20 am
IDA
-
BOS
9h 26m
1 stop
$433Delta
Sat, May 2 - Fri, May 8
United Airlines Logo
7:09 am - 3:43 pm
BOS
-
IDA
10h 34m
1 stop
United Airlines Logo
2:31 pm - 11:59 pm
IDA
-
BOS
7h 28m
1 stop
$438United Airlines
Fri, May 8 - Sat, May 16
American Airlines Logo
6:00 am - 1:44 pm
BOS
-
IDA
9h 44m
1 stop
American Airlines Logo
7:00 am - 9:29 pm
IDA
-
BOS
12h 29m
2 stops
$439American Airlines
Sat, Aug 22 - Sat, Aug 29

Alaska Airlines flights from Boston to Idaho Falls

Our best Alaska Airlines deals on Boston to Idaho Falls flight tickets
Alaska Airlines
Sep 18
BOS10:30 amBoston Logan Intl
29h 57m
1 stop
IDA2:27 pmIdaho Falls Fanning Field
Sep 21
IDA4:00 pmIdaho Falls Fanning Field
12h 02m
1 stop
BOS6:02 amBoston Logan Intl
$419
Alaska Airlines
Jun 2
BOS6:00 amBoston Logan Intl
9h 17m
1 stop
IDA1:17 pmIdaho Falls Fanning Field
Jun 6
IDA4:03 pmIdaho Falls Fanning Field
11h 41m
2 stops
BOS5:44 amBoston Logan Intl
$468
Alaska Airlines
May 14
BOS7:20 amBoston Logan Intl
10h 06m
1 stop
IDA3:26 pmIdaho Falls Fanning Field
May 21
IDA4:03 pmIdaho Falls Fanning Field
12h 17m
1 stop
BOS6:20 amBoston Logan Intl
$489

American Airlines flights from Boston to Idaho Falls

Our best American Airlines deals on Boston to Idaho Falls flight tickets
American Airlines
May 2
BOS2:02 pmBoston Logan Intl
11h 37m
2 stops
IDA11:39 pmIdaho Falls Fanning Field
May 9
IDA7:48 amIdaho Falls Fanning Field
10h 52m
1 stop
BOS8:40 pmBoston Logan Intl
$374
American Airlines
Apr 28
BOS12:57 pmBoston Logan Intl
12h 42m
2 stops
IDA11:39 pmIdaho Falls Fanning Field
May 2
IDA7:48 amIdaho Falls Fanning Field
14h 16m
2 stops
BOS12:04 amBoston Logan Intl
$380
American Airlines
Aug 22
BOS6:00 amBoston Logan Intl
9h 44m
1 stop
IDA1:44 pmIdaho Falls Fanning Field
Aug 29
IDA12:12 pmIdaho Falls Fanning Field
8h 58m
1 stop
BOS11:10 pmBoston Logan Intl
$396

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Idaho Falls that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 25, 2026.
Use the filters below to find and compare flights from Boston to Idaho Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sat 5/2

4:50 pm-10:40 pm

1 stop7h 50m

Idaho Falls Fanning Field

Sun 5/10

6:54 pm-6:20 am

1 stop9h 26m

$369

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sat 5/2

2:02 pm-11:39 pm

2 stops11h 37m

Idaho Falls Fanning Field

Sat 5/9

7:48 am-8:40 pm

1 stop10h 52m

$374

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 4/28

12:57 pm-11:39 pm

2 stops12h 42m

Idaho Falls Fanning Field

Sat 5/2

7:48 am-12:04 am

2 stops14h 16m

$380

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sat 8/22

6:00 am-1:44 pm

1 stop9h 44m

Idaho Falls Fanning Field

Sat 8/29

12:12 pm-11:10 pm

1 stop8h 58m

$396

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Fri 9/18

10:30 am-2:27 pm

1 stop29h 57m

Idaho Falls Fanning Field

Mon 9/21

4:00 pm-6:02 am

1 stop12h 02m

$419
Quickest round-trip

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 4/23

6:15 am-12:26 pm

1 stop8h 11m

Idaho Falls Fanning Field

Sun 5/3

6:58 pm-6:00 am

1 stop9h 02m

$428

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 5/28

11:22 am-10:15 pm

2 stops12h 53m

Idaho Falls Fanning Field

Tue 6/2

2:08 pm-12:04 am

1 stop7h 56m

$430

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sat 5/2

3:10 pm-10:40 pm

2 stops9h 30m

Idaho Falls Fanning Field

Fri 5/8

6:54 pm-6:20 am

1 stop9h 26m

$433

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Fri 5/8

7:09 am-3:43 pm

1 stop10h 34m

Idaho Falls Fanning Field

Sat 5/16

2:31 pm-11:59 pm

1 stop7h 28m

$438

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sat 8/22

6:00 am-1:44 pm

1 stop9h 44m

Idaho Falls Fanning Field

Sat 8/29

7:00 am-9:29 pm

2 stops12h 29m

$439

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Idaho Falls from

How to get the cheapest flight ticket from Boston 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

What is the cheapest month to fly to Idaho Falls?

If you aren’t able to travel to Idaho Falls during the month of October, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $445.

When to book flights from Boston to Idaho Falls

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Idaho Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Idaho Falls (BOS to IDA) flight deals and tips

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

Fastest flight time

7h 40m

Direct flights

None
The fastest flight from Boston to Idaho Falls takes 7h 40m
There are no direct flights from Boston to Idaho Falls. There are no popular flight routes from Boston to Idaho Falls.
Search flight deals

  • How far is Boston Logan Intl to Idaho Falls Fanning Field by plane?

    There are 2052.3 mi between Boston Logan Intl and Idaho Falls Fanning Field. By plane, this route typically takes 7h 40m.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Idaho Falls Fanning Field Airport?

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

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Idaho Falls Fanning Field Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Idaho Falls Fanning Field Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl 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 you'll need for your trip to Idaho Falls Fanning Field Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho Falls Fanning Field Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Boston to Idaho Falls?

Best airlines flying from Boston to Idaho Falls

Compare and see reviews for airlines that fly from Boston to Idaho Falls with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $335Free CancellationRating
7.9
8,326 reviews
Search Delta flights
American AirlinesPriceFrom $400Free CancellationRating
7.1
11,494 reviews
Search American Airlines flights
United AirlinesPriceFrom $435Free CancellationRating
7.4
9,477 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $439Free CancellationRating
7.9
12,108 reviews
Search Alaska Airlines flights

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

Why use momondo?

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

Finding the right flight to Idaho Falls from Boston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Idaho Falls quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Boston to Idaho Falls flights to just show those with flexible booking policies.

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

Once you have performed a search for Boston to Idaho Falls flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of Boston to Idaho Falls flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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