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Cheap flights from Boston to Idaho Falls from $211

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 4/1. 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.
Alaska Airlines Logo
6:24 pm - 4:43 pm
BOS
-
IDA
24h 19m
1 stop
Alaska Airlines Logo
5:20 pm - 6:54 am
IDA
-
BOS
11h 34m
1 stop
$354Alaska Airlines
Thu, Mar 5 - Mon, Mar 9
Alaska Airlines Logo
6:24 pm - 4:43 pm
BOS
-
IDA
24h 19m
1 stop
Alaska Airlines Logo
5:20 pm - 5:24 pm
IDA
-
BOS
22h 04m
2 stops
$423Alaska Airlines
Thu, Mar 5 - Mon, Mar 9
Alaska Airlines Logo
9:02 am - 4:43 pm
BOS
-
IDA
9h 41m
1 stop
Alaska Airlines Logo
5:20 pm - 6:54 am
IDA
-
BOS
11h 34m
1 stop
$448Alaska Airlines
Fri, Feb 20 - Wed, Feb 25
American Airlines Logo
4:37 pm - 11:24 pm
BOS
-
IDA
8h 47m
1 stop
American Airlines Logo
2:18 pm - 7:13 am
IDA
-
BOS
14h 55m
2 stops
$472American Airlines
Fri, Feb 20 - Wed, Feb 25
American Airlines Logo
12:59 pm - 11:24 pm
BOS
-
IDA
12h 25m
2 stops
American Airlines Logo
2:18 pm - 7:13 am
IDA
-
BOS
14h 55m
2 stops
$477American Airlines
Fri, Feb 20 - Wed, Feb 25
Delta Logo
8:23 am - 6:17 pm
BOS
-
IDA
11h 54m
2 stops
Delta Logo
6:58 pm - 6:00 am
IDA
-
BOS
9h 02m
1 stop
$529Delta
Thu, Apr 23 - Sun, May 3
United Airlines Logo
9:20 am - 3:40 pm
BOS
-
IDA
8h 20m
1 stop
United Airlines Logo
2:40 pm - 11:44 pm
IDA
-
BOS
7h 04m
1 stop
$532United Airlines
Fri, Feb 20 - Wed, Feb 25
Alaska Airlines Logo
7:00 am - 3:29 pm
BOS
-
IDA
10h 29m
1 stop
Alaska Airlines Logo
6:00 am - 7:12 am
IDA
-
BOS
23h 12m
1 stop
$541Alaska Airlines
Thu, Apr 23 - Sun, May 3
Alaska Airlines Logo
7:00 am - 3:29 pm
BOS
-
IDA
10h 29m
1 stop
Alaska Airlines Logo
4:06 pm - 7:12 am
IDA
-
BOS
13h 06m
1 stop
$549Alaska Airlines
Thu, Apr 23 - Sun, May 3
Delta Logo
7:15 am - 5:49 pm
BOS
-
IDA
12h 34m
2 stops
Delta Logo
6:55 pm - 10:04 am
IDA
-
BOS
13h 09m
2 stops
$561Delta
Thu, Mar 5 - Mon, Mar 9

Alaska Airlines flights from Boston to Idaho Falls

Our best Alaska Airlines deals on Boston to Idaho Falls flight tickets
Alaska Airlines
Feb 20
BOS9:02 amBoston Logan Intl
9h 41m
1 stop
IDA4:43 pmIdaho Falls Fanning Field
Feb 25
IDA5:20 pmIdaho Falls Fanning Field
11h 34m
1 stop
BOS6:54 amBoston Logan Intl
$448
Alaska Airlines
Apr 23
BOS7:00 amBoston Logan Intl
10h 29m
1 stop
IDA3:29 pmIdaho Falls Fanning Field
May 3
IDA6:00 amIdaho Falls Fanning Field
23h 12m
1 stop
BOS7:12 amBoston Logan Intl
$541
Alaska Airlines
May 14
BOS8:05 amBoston Logan Intl
16h 40m
2 stops
IDA10:45 pmIdaho Falls Fanning Field
May 21
IDA1:43 pmIdaho Falls Fanning Field
8h 16m
1 stop
BOS11:59 pmBoston Logan Intl
$568

American Airlines flights from Boston to Idaho Falls

Our best American Airlines deals on Boston to Idaho Falls flight tickets
American Airlines
Feb 20
BOS4:37 pmBoston Logan Intl
8h 47m
1 stop
IDA11:24 pmIdaho Falls Fanning Field
Feb 25
IDA2:18 pmIdaho Falls Fanning Field
14h 55m
2 stops
BOS7:13 amBoston Logan Intl
$472
American Airlines
Feb 20
BOS12:59 pmBoston Logan Intl
12h 25m
2 stops
IDA11:24 pmIdaho Falls Fanning Field
Feb 25
IDA2:18 pmIdaho Falls Fanning Field
14h 55m
2 stops
BOS7:13 amBoston Logan Intl
$477
American Airlines
Apr 21
BOS11:11 amBoston Logan Intl
14h 28m
2 stops
IDA11:39 pmIdaho Falls Fanning Field
Apr 25
IDA1:43 pmIdaho Falls Fanning Field
17h 18m
2 stops
BOS9:01 amBoston Logan Intl
$800

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 February 2, 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

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 3/5

6:24 pm-4:43 pm

1 stop24h 19m

Idaho Falls Fanning Field

Mon 3/9

5:20 pm-6:54 am

1 stop11h 34m

$354

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 3/5

6:24 pm-4:43 pm

1 stop24h 19m

Idaho Falls Fanning Field

Mon 3/9

5:20 pm-5:24 pm

2 stops22h 04m

$423

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Fri 2/20

9:02 am-4:43 pm

1 stop9h 41m

Idaho Falls Fanning Field

Wed 2/25

5:20 pm-6:54 am

1 stop11h 34m

$448

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Fri 2/20

4:37 pm-11:24 pm

1 stop8h 47m

Idaho Falls Fanning Field

Wed 2/25

2:18 pm-7:13 am

2 stops14h 55m

$472

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Fri 2/20

12:59 pm-11:24 pm

2 stops12h 25m

Idaho Falls Fanning Field

Wed 2/25

2:18 pm-7:13 am

2 stops14h 55m

$477

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 4/23

8:23 am-6:17 pm

2 stops11h 54m

Idaho Falls Fanning Field

Sun 5/3

6:58 pm-6:00 am

1 stop9h 02m

$529

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Fri 2/20

9:20 am-3:40 pm

1 stop8h 20m

Idaho Falls Fanning Field

Wed 2/25

2:40 pm-11:44 pm

1 stop7h 04m

$532

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 4/23

7:00 am-3:29 pm

1 stop10h 29m

Idaho Falls Fanning Field

Sun 5/3

6:00 am-7:12 am

1 stop23h 12m

$541

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 4/23

7:00 am-3:29 pm

1 stop10h 29m

Idaho Falls Fanning Field

Sun 5/3

4:06 pm-7:12 am

1 stop13h 06m

$549

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 3/5

7:15 am-5:49 pm

2 stops12h 34m

Idaho Falls Fanning Field

Mon 3/9

6:55 pm-10:04 am

2 stops13h 09m

$561

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 typical price of a round-trip flight between Boston and Idaho Falls?

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 September is also cheap. Prices for this month can be found on momondo for an average of $442.

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 35m

Direct flights

None
The fastest flight from Boston to Idaho Falls takes 7h 35m
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 35m.

  • 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 $346Free CancellationRating
7.9
8,128 reviews
Search Delta flights
American AirlinesPriceFrom $400Free CancellationRating
7.2
11,211 reviews
Search American Airlines flights
United AirlinesPriceFrom $435Free CancellationRating
7.4
9,225 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $485Free CancellationRating
8.0
11,825 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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