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Cheap flights from Boston to Idaho Falls from $190

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 8/27. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Idaho Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
1:02 pm - 9:20 pmBOS  Boston Logan Intl-IDA Idaho Falls Fanning Field
10h 18m1 stop Dallas/Fort Worth
American Airlines Logo
1:43 pm - 11:59 pmIDA  Idaho Falls Fanning Field-BOS Boston Logan Intl
8h 16m1 stop Chicago O'Hare Intl
$379American Airlines
Fri, Aug 28 - Wed, Sep 2
American Airlines Logo
6:14 am - 1:09 pmBOS  Boston Logan Intl-IDA Idaho Falls Fanning Field
8h 55m1 stop Chicago O'Hare Intl
American Airlines Logo
1:43 pm - 11:59 pmIDA  Idaho Falls Fanning Field-BOS Boston Logan Intl
8h 16m1 stop Chicago O'Hare Intl
$379American Airlines
Thu, Aug 27 - Wed, Sep 2
American Airlines Logo
6:00 am - 1:28 pmBOS  Boston Logan Intl-IDA Idaho Falls Fanning Field
9h 28m1 stop Chicago O'Hare Intl
American Airlines Logo
1:58 pm - 11:54 pmIDA  Idaho Falls Fanning Field-BOS Boston Logan Intl
7h 56m1 stop Chicago O'Hare Intl
$379American Airlines
Wed, Sep 16 - Tue, Sep 22
Delta Logo
1:10 pm - 10:32 pmBOS  Boston Logan Intl-IDA Idaho Falls Fanning Field
11h 22m2 stops Detroit Metropolitan Wayne County Salt Lake City
Delta Logo
3:17 pm - 11:57 pmIDA  Idaho Falls Fanning Field-BOS Boston Logan Intl
6h 40m1 stop Salt Lake City
$384Delta
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
12:41 pm - 9:18 pmBOS  Boston Logan Intl-IDA Idaho Falls Fanning Field
10h 37m2 stops Newark Denver Intl
United Airlines Logo
2:25 pm - 11:54 pmIDA  Idaho Falls Fanning Field-BOS Boston Logan Intl
7h 29m1 stop Denver Intl
$398United Airlines
Fri, Aug 28 - Wed, Sep 2
Alaska Airlines Logo
10:03 am - 10:56 pmBOS  Boston Logan Intl-IDA Idaho Falls Fanning Field
14h 53m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
3:57 pm - 6:09 amIDA  Idaho Falls Fanning Field-BOS Boston Logan Intl
12h 12m1 stop Portland
$406Alaska Airlines
Wed, Sep 23 - Tue, Sep 29
Alaska Airlines Logo
5:42 pm - 1:24 pmBOS  Boston Logan Intl-IDA Idaho Falls Fanning Field
21h 42m1 stop Portland
Alaska Airlines Logo
3:57 pm - 6:09 amIDA  Idaho Falls Fanning Field-BOS Boston Logan Intl
12h 12m1 stop Portland
$406Alaska Airlines
Fri, Sep 11 - Sat, Sep 19
United Airlines Logo
9:33 am - 5:16 pmBOS  Boston Logan Intl-IDA Idaho Falls Fanning Field
9h 43m2 stops Newark Denver Intl
United Airlines Logo
2:25 pm - 11:54 pmIDA  Idaho Falls Fanning Field-BOS Boston Logan Intl
7h 29m1 stop Denver Intl
$414United Airlines
Fri, Aug 28 - Wed, Sep 2
Delta Logo
2:35 pm - 10:32 pmBOS  Boston Logan Intl-IDA Idaho Falls Fanning Field
9h 57m2 stops Cincinnati Cinci./N. Kentucky Salt Lake City
Delta Logo
7:00 pm - 6:30 amIDA  Idaho Falls Fanning Field-BOS Boston Logan Intl
9h 30m1 stop Salt Lake City
$414Delta
Sat, Aug 22 - Sat, Aug 29
Delta Logo
1:10 pm - 10:22 pmBOS  Boston Logan Intl-IDA Idaho Falls Fanning Field
11h 12m2 stops Detroit Metropolitan Wayne County Salt Lake City
Delta Logo
6:57 pm - 6:30 amIDA  Idaho Falls Fanning Field-BOS Boston Logan Intl
9h 33m1 stop Salt Lake City
$414Delta
Wed, Sep 16 - Tue, Sep 22

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American Airlines flights from Boston to Idaho Falls

Our best American Airlines deals on Boston to Idaho Falls flight tickets
American Airlines
Aug 25
BOS6:14 amBoston Logan Intl
8h 55m
1 stop
IDA1:09 pmIdaho Falls Fanning Field
Aug 26
IDA1:43 pmIdaho Falls Fanning Field
8h 16m
1 stop
BOS11:59 pmBoston Logan Intl
$379
American Airlines
Oct 3
BOS6:02 amBoston Logan Intl
9h 35m
1 stop
IDA1:37 pmIdaho Falls Fanning Field
Oct 10
IDA1:50 pmIdaho Falls Fanning Field
7h 46m
1 stop
BOS11:36 pmBoston Logan Intl
$406
American Airlines
Aug 23
BOS7:10 amBoston Logan Intl
7h 59m
1 stop
IDA1:09 pmIdaho Falls Fanning Field
Aug 29
IDA12:06 pmIdaho Falls Fanning Field
8h 00m
1 stop
BOS10:06 pmBoston Logan Intl
$409

Alaska Airlines flights from Boston to Idaho Falls

Our best Alaska Airlines deals on Boston to Idaho Falls flight tickets
Alaska Airlines
Oct 3
BOS7:09 amBoston Logan Intl
10h 11m
1 stop
IDA3:20 pmIdaho Falls Fanning Field
Oct 10
IDA3:57 pmIdaho Falls Fanning Field
12h 15m
1 stop
BOS6:12 amBoston Logan Intl
$416
Alaska Airlines
Aug 28
BOS3:31 pmBoston Logan Intl
9h 25m
1 stop
IDA10:56 pmIdaho Falls Fanning Field
Sep 5
IDA3:57 pmIdaho Falls Fanning Field
12h 12m
1 stop
BOS6:09 amBoston Logan Intl
$464
Alaska Airlines
Oct 3
BOS7:09 amBoston Logan Intl
10h 11m
1 stop
IDA3:20 pmIdaho Falls Fanning Field
Oct 10
IDA6:09 amIdaho Falls Fanning Field
21h 12m
2 stops
BOS5:21 amBoston Logan Intl
$468

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 August 9, 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 Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Fri 8/28

1:02 pm-9:20 pm

1 stop10h 18m

Idaho Falls Fanning Field

Wed 9/2

1:43 pm-11:59 pm

1 stop8h 16m

$379
Quickest round-trip

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Thu 8/27

6:14 am-1:09 pm

1 stop8h 55m

Idaho Falls Fanning Field

Wed 9/2

1:43 pm-11:59 pm

1 stop8h 16m

$379

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Wed 9/16

6:00 am-1:28 pm

1 stop9h 28m

Idaho Falls Fanning Field

Tue 9/22

1:58 pm-11:54 pm

1 stop7h 56m

$379

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Tue 9/1

1:10 pm-10:32 pm

2 stops11h 22m

Idaho Falls Fanning Field

Sat 9/5

3:17 pm-11:57 pm

1 stop6h 40m

$384

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Fri 8/28

12:41 pm-9:18 pm

2 stops10h 37m

Idaho Falls Fanning Field

Wed 9/2

2:25 pm-11:54 pm

1 stop7h 29m

$398

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Wed 9/23

10:03 am-10:56 pm

1 stop14h 53m

Idaho Falls Fanning Field

Tue 9/29

3:57 pm-6:09 am

1 stop12h 12m

$406

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Fri 9/11

5:42 pm-1:24 pm

1 stop21h 42m

Idaho Falls Fanning Field

Sat 9/19

3:57 pm-6:09 am

1 stop12h 12m

$406

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Fri 8/28

9:33 am-5:16 pm

2 stops9h 43m

Idaho Falls Fanning Field

Wed 9/2

2:25 pm-11:54 pm

1 stop7h 29m

$414

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Sat 8/22

2:35 pm-10:32 pm

2 stops9h 57m

Idaho Falls Fanning Field

Sat 8/29

7:00 pm-6:30 am

1 stop9h 30m

$414

BostonIdaho Falls

BOS Boston Logan Intl - IDA Idaho Falls Fanning Field

BOSIDA

Boston Logan Intl

Wed 9/16

1:10 pm-10:22 pm

2 stops11h 12m

Idaho Falls Fanning Field

Tue 9/22

6:57 pm-6:30 am

1 stop9h 33m

$414

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?

Prices are currently low for flights on this route.

Typical prices usually range from $395 to $710.
The lowest price recently found on this route was $379.

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 44m

Direct flights

None
The fastest flight from Boston to Idaho Falls takes 7h 44m
There are no direct flights from Boston to Idaho Falls. There are no popular flight routes from Boston to Idaho Falls.
Search flight deals

Frequently asked questions about flying from Boston to Idaho Falls

  • 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 44m.

  • 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
American AirlinesPriceFrom $370Free CancellationRating
7.1
11,894 reviews
Search American Airlines flights
United AirlinesPriceFrom $435Free CancellationRating
7.4
10,090 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $468Free CancellationRating
7.9
12,790 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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