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Cheap flights from Boston to Idaho Falls from $207

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 11/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
7:30 am - 10:21 pmBOS-IDA
16h 51m2 stops
Delta Logo
6:45 pm - 6:13 amIDA-BOS
9h 28m1 stop
$410Delta
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Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
4:50 pm - 10:52 pmBOS-IDA
8h 02m1 stop
United Airlines Logo
10:50 am - 9:50 pmIDA-BOS
9h 00m1 stop
$421United Airlines
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Wed, Nov 5 - Tue, Nov 11
United Airlines Logo
6:00 am - 1:35 pmBOS-IDA
9h 35m2 stops
United Airlines Logo
10:45 am - 12:01 amIDA-BOS
11h 16m2 stops
$425United Airlines
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Sat, Feb 21 - Fri, Feb 27
Delta Logo
8:00 am - 4:32 pmBOS-IDA
10h 32m2 stops
Delta Logo
7:06 pm - 6:18 amIDA-BOS
9h 12m1 stop
$426Delta
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Thu, Nov 27 - Tue, Dec 2
American Airlines Logo
8:30 am - 10:34 pmBOS-IDA
16h 04m2 stops
American Airlines Logo
7:10 am - 8:30 pmIDA-BOS
11h 20m2 stops
$431American Airlines
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Wed, Nov 5 - Tue, Nov 11
Delta Logo
6:00 am - 12:31 pmBOS-IDA
8h 31m1 stop
Delta Logo
6:45 pm - 6:13 amIDA-BOS
9h 28m1 stop
$436Delta
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Tue, Mar 3 - Wed, Mar 4
Delta Logo
6:00 am - 6:15 pmBOS-IDA
14h 15m2 stops
Delta Logo
6:45 pm - 6:13 amIDA-BOS
9h 28m1 stop
$440Delta
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Mon, Feb 23 - Wed, Feb 25
Alaska Airlines Logo
7:00 am - 6:18 pmBOS-IDA
13h 18m1 stop
Alaska Airlines Logo
9:00 am - 3:25 pmIDA-BOS
28h 25m2 stops
$442Alaska Airlines
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Thu, Jan 15 - Mon, Jan 19
American Airlines Logo
6:05 am - 3:46 pmBOS-IDA
11h 41m1 stop
American Airlines Logo
7:00 am - 11:33 pmIDA-BOS
14h 33m1 stop
$445American Airlines
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Thu, Nov 27 - Wed, Dec 10
Alaska Airlines Logo
5:20 pm - 6:18 pmBOS-IDA
26h 58m2 stops
Alaska Airlines Logo
9:00 am - 3:25 pmIDA-BOS
28h 25m2 stops
$463Alaska Airlines
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Thu, Jan 15 - Mon, Jan 19

Alaska Airlines flights from Boston to Idaho Falls

Our best Alaska Airlines deals on Boston to Idaho Falls flight tickets
Alaska Airlines
Jan 15
BOS7:00 amBoston Logan Intl
13h 18m
1 stop
IDA6:18 pmIdaho Falls Fanning Field
Jan 19
IDA9:00 amIdaho Falls Fanning Field
28h 25m
2 stops
BOS3:25 pmBoston Logan Intl
$442
Find similar
Alaska Airlines
Jan 15
BOS5:20 pmBoston Logan Intl
26h 58m
2 stops
IDA6:18 pmIdaho Falls Fanning Field
Jan 19
IDA9:00 amIdaho Falls Fanning Field
28h 25m
2 stops
BOS3:25 pmBoston Logan Intl
$463
Find similar
Alaska Airlines
Feb 19
BOS7:00 amBoston Logan Intl
10h 23m
1 stop
IDA3:23 pmIdaho Falls Fanning Field
Feb 28
IDA8:00 amIdaho Falls Fanning Field
13h 59m
1 stop
BOS11:59 pmBoston Logan Intl
$466
Find similar

American Airlines flights from Boston to Idaho Falls

Our best American Airlines deals on Boston to Idaho Falls flight tickets
American Airlines
Nov 5
BOS8:30 amBoston Logan Intl
16h 04m
2 stops
IDA10:34 pmIdaho Falls Fanning Field
Nov 11
IDA7:10 amIdaho Falls Fanning Field
11h 20m
2 stops
BOS8:30 pmBoston Logan Intl
$431
Find similar
American Airlines
Nov 27
BOS6:05 amBoston Logan Intl
11h 41m
1 stop
IDA3:46 pmIdaho Falls Fanning Field
Dec 10
IDA7:00 amIdaho Falls Fanning Field
14h 33m
1 stop
BOS11:33 pmBoston Logan Intl
$445
Find similar
American Airlines
Nov 27
BOS6:05 amBoston Logan Intl
11h 41m
1 stop
IDA3:46 pmIdaho Falls Fanning Field
Dec 2
IDA7:00 amIdaho Falls Fanning Field
20h 31m
1 stop
BOS5:31 amBoston Logan Intl
$503
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 October 16, 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

Sat 2/21

7:30 am-10:21 pm

2 stops16h 51m

Idaho Falls Fanning Field

Wed 2/25

6:45 pm-6:13 am

1 stop9h 28m

$410

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 11/5

4:50 pm-10:52 pm

1 stop8h 02m

Idaho Falls Fanning Field

Tue 11/11

10:50 am-9:50 pm

1 stop9h 00m

$421

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Sat 2/21

6:00 am-1:35 pm

2 stops9h 35m

Idaho Falls Fanning Field

Fri 2/27

10:45 am-12:01 am

2 stops11h 16m

$425

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 11/27

8:00 am-4:32 pm

2 stops10h 32m

Idaho Falls Fanning Field

Tue 12/2

7:06 pm-6:18 am

1 stop9h 12m

$426

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Wed 11/5

8:30 am-10:34 pm

2 stops16h 04m

Idaho Falls Fanning Field

Tue 11/11

7:10 am-8:30 pm

2 stops11h 20m

$431

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Tue 3/3

6:00 am-12:31 pm

1 stop8h 31m

Idaho Falls Fanning Field

Wed 3/4

6:45 pm-6:13 am

1 stop9h 28m

$436

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Mon 2/23

6:00 am-6:15 pm

2 stops14h 15m

Idaho Falls Fanning Field

Wed 2/25

6:45 pm-6:13 am

1 stop9h 28m

$440

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 1/15

7:00 am-6:18 pm

1 stop13h 18m

Idaho Falls Fanning Field

Mon 1/19

9:00 am-3:25 pm

2 stops28h 25m

$442

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 11/27

6:05 am-3:46 pm

1 stop11h 41m

Idaho Falls Fanning Field

Wed 12/10

7:00 am-11:33 pm

1 stop14h 33m

$445

BostonIdaho Falls

BOS - IDA

BOSIDA

Boston Logan Intl

Thu 1/15

5:20 pm-6:18 pm

2 stops26h 58m

Idaho Falls Fanning Field

Mon 1/19

9:00 am-3:25 pm

2 stops28h 25m

$463

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 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 $445.

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

Direct flights

None
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 8h 02m.

  • 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
7,977 reviews
Search Delta flights
American AirlinesPriceFrom $400Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
United AirlinesPriceFrom $528Free CancellationRating
7.4
8,978 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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