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Cheap flights from Boston to Idaho Falls from $168

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 10/30. 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

Delta Logo
6:10 am - 12:26 pmBOS-IDA
8h 16m1 stop
Delta Logo
6:51 pm - 6:25 amIDA-BOS
9h 34m1 stop
$401Delta
Find Deal
Tue, Sep 23 - Tue, Sep 30
Delta Logo
6:10 am - 12:26 pmBOS-IDA
8h 16m1 stop
Delta Logo
6:51 pm - 9:35 amIDA-BOS
12h 44m2 stops
$406Delta
Find Deal
Tue, Sep 23 - Tue, Sep 30
Delta Logo
1:05 pm - 10:25 pmBOS-IDA
11h 20m2 stops
Delta Logo
6:51 pm - 9:35 amIDA-BOS
12h 44m2 stops
$411Delta
Find Deal
Tue, Sep 23 - Tue, Sep 30
American Airlines Logo
10:20 am - 9:48 pmBOS-IDA
13h 28m2 stops
American Airlines Logo
7:15 am - 5:31 amIDA-BOS
20h 16m1 stop
$458American Airlines
Find Deal
Tue, Oct 28 - Tue, Dec 2
United Airlines Logo
7:30 am - 3:29 pmBOS-IDA
9h 59m1 stop
United Airlines Logo
2:35 pm - 11:46 pmIDA-BOS
7h 11m1 stop
$501United Airlines
Find Deal
Wed, Sep 10 - Tue, Sep 16
United Airlines Logo
7:30 am - 3:29 pmBOS-IDA
9h 59m1 stop
United Airlines Logo
5:00 am - 8:38 pmIDA-BOS
13h 38m2 stops
$506United Airlines
Find Deal
Wed, Sep 10 - Tue, Sep 16
United Airlines Logo
6:10 am - 3:29 pmBOS-IDA
11h 19m2 stops
United Airlines Logo
5:00 am - 6:55 pmIDA-BOS
11h 55m2 stops
$511United Airlines
Find Deal
Wed, Sep 10 - Tue, Sep 16
United Airlines Logo
6:00 am - 9:03 pmBOS-IDA
17h 03m2 stops
United Airlines Logo
4:19 pm - 9:14 amIDA-BOS
14h 55m2 stops
$520United Airlines
Find Deal
Tue, Oct 28 - Tue, Dec 2
United Airlines Logo
9:30 am - 5:15 pmBOS-IDA
9h 45m1 stop
United Airlines Logo
5:00 am - 6:55 pmIDA-BOS
11h 55m2 stops
$536United Airlines
Find Deal
Thu, Sep 4 - Thu, Sep 11
Alaska Airlines Logo
5:55 pm - 3:23 pmBOS-IDA
23h 28m1 stop
Alaska Airlines Logo
8:00 am - 7:16 amIDA-BOS
21h 16m1 stop
$720Alaska Airlines
Find Deal
Sat, Feb 14 - Sun, Feb 22

American Airlines flights from Boston to Idaho Falls

Our best American Airlines deals on Boston to Idaho Falls flight tickets
American Airlines
Oct 28
BOS10:20 amBoston Logan Intl
13h 28m
2 stops
IDA9:48 pmIdaho Falls Fanning Field
Dec 2
IDA7:15 amIdaho Falls Fanning Field
20h 16m
1 stop
BOS5:31 amBoston Logan Intl
$458
Find similar
American Airlines
Aug 19
BOS5:55 amBoston Logan Intl
8h 21m
1 stop
IDA12:16 pmIdaho Falls Fanning Field
Aug 25
IDA1:17 pmIdaho Falls Fanning Field
7h 59m
1 stop
BOS11:16 pmBoston Logan Intl
$636
Find similar
American Airlines
Aug 19
BOS11:52 amBoston Logan Intl
11h 26m
2 stops
IDA9:18 pmIdaho Falls Fanning Field
Aug 25
IDA1:17 pmIdaho Falls Fanning Field
7h 59m
1 stop
BOS11:16 pmBoston Logan Intl
$666
Find similar

Delta flights from Boston to Idaho Falls

Our best Delta deals on Boston to Idaho Falls flight tickets
Delta
Sep 23
BOS6:10 amBoston Logan Intl
8h 16m
1 stop
IDA12:26 pmIdaho Falls Fanning Field
Sep 30
IDA6:51 pmIdaho Falls Fanning Field
9h 34m
1 stop
BOS6:25 amBoston Logan Intl
$401
Find similar
Delta
Sep 23
BOS6:10 amBoston Logan Intl
8h 16m
1 stop
IDA12:26 pmIdaho Falls Fanning Field
Sep 30
IDA6:51 pmIdaho Falls Fanning Field
12h 44m
2 stops
BOS9:35 amBoston Logan Intl
$406
Find similar
Delta
Sep 23
BOS1:05 pmBoston Logan Intl
11h 20m
2 stops
IDA10:25 pmIdaho Falls Fanning Field
Sep 30
IDA6:51 pmIdaho Falls Fanning Field
12h 44m
2 stops
BOS9:35 amBoston Logan Intl
$411
Find similar

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 18, 2025.
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

Tue 9/23

6:10 am-12:26 pm

1 stop8h 16m

Idaho Falls Fanning Field

Tue 9/30

6:51 pm-6:25 am

1 stop9h 34m

$401

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 9/23

6:10 am-12:26 pm

1 stop8h 16m

Idaho Falls Fanning Field

Tue 9/30

6:51 pm-9:35 am

2 stops12h 44m

$406

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 9/23

1:05 pm-10:25 pm

2 stops11h 20m

Idaho Falls Fanning Field

Tue 9/30

6:51 pm-9:35 am

2 stops12h 44m

$411

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 10/28

10:20 am-9:48 pm

2 stops13h 28m

Idaho Falls Fanning Field

Tue 12/2

7:15 am-5:31 am

1 stop20h 16m

$458

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 9/10

7:30 am-3:29 pm

1 stop9h 59m

Idaho Falls Fanning Field

Tue 9/16

2:35 pm-11:46 pm

1 stop7h 11m

$501

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 9/10

7:30 am-3:29 pm

1 stop9h 59m

Idaho Falls Fanning Field

Tue 9/16

5:00 am-8:38 pm

2 stops13h 38m

$506

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 9/10

6:10 am-3:29 pm

2 stops11h 19m

Idaho Falls Fanning Field

Tue 9/16

5:00 am-6:55 pm

2 stops11h 55m

$511

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 10/28

6:00 am-9:03 pm

2 stops17h 03m

Idaho Falls Fanning Field

Tue 12/2

4:19 pm-9:14 am

2 stops14h 55m

$520

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 9/4

9:30 am-5:15 pm

1 stop9h 45m

Idaho Falls Fanning Field

Thu 9/11

5:00 am-6:55 pm

2 stops11h 55m

$536

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sat 2/14

5:55 pm-3:23 pm

1 stop23h 28m

Idaho Falls Fanning Field

Sun 2/22

8:00 am-7:16 am

1 stop21h 16m

$720

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 September, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $447.

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 Boston 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 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

Best Price Found

$168

Fastest flight time

7h 41m

Direct flights

None

Airports in Idaho Falls

1 airport
The best one-way flight to Idaho Falls from Boston in the past 72 hours is $168. The best round-trip flight deal from Boston to Idaho Falls found on momondo in the last 72 hours is $401.
The fastest flight from Boston to Idaho Falls takes 7h 41m
There are no direct flights from Boston to Idaho Falls. Popular non-direct route for this connection is Boston Logan Intl Airport - Idaho Falls Fanning Field Airport.
There is 1 airport near Idaho Falls: Idaho Falls Fanning Field (IDA)
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 41m.

  • 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 $360Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $400Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $528Free CancellationRating
7.4
8,925 reviews
Search United 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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