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Cheap flights from Idaho Falls to New Hampshire from $185

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho Falls to New Hampshire departing on 1/18. 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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Find the cheapest flights from Idaho Falls to New Hampshire

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:42 am - 6:04 pm
IDA
-
BOS
9h 22m2 stops
American Airlines Logo
5:25 am - 1:30 pm
BOS
-
IDA
10h 05m1 stop
$451American Airlines
Wed, Feb 18 - Thu, Feb 26
American Airlines Logo
6:42 am - 6:04 pm
IDA
-
BOS
9h 22m2 stops
American Airlines Logo
12:54 pm - 11:07 pm
BOS
-
IDA
12h 13m2 stops
$456American Airlines
Wed, Feb 18 - Thu, Feb 26
Alaska Airlines Logo
5:20 pm - 6:54 am
IDA
-
BOS
11h 34m1 stop
Alaska Airlines Logo
9:02 am - 4:43 pm
BOS
-
IDA
9h 41m1 stop
$470Alaska Airlines
Wed, Feb 18 - Thu, Feb 26
United Airlines Logo
4:19 pm - 9:01 am
IDA
-
PWM
14h 42m2 stops
United Airlines Logo
6:00 am - 3:31 pm
PWM
-
IDA
11h 31m2 stops
$548United Airlines
Wed, Jan 28 - Sat, Jan 31
United Airlines Logo
5:30 pm - 12:46 pm
IDA
-
BOS
17h 16m3 stops
United Airlines Logo
6:00 am - 1:30 pm
BOS
-
IDA
9h 30m2 stops
$651United Airlines
Wed, Feb 18 - Thu, Feb 26
United Airlines Logo
2:40 pm - 6:53 pm
IDA
-
MHT
26h 13m2 stops
United Airlines Logo
2:33 pm - 1:30 pm
MHT
-
IDA
24h 57m2 stops
$678United Airlines
Sat, Feb 14 - Wed, Feb 18

American Airlines flights from Idaho Falls to New Hampshire

Our best American Airlines deals on Idaho Falls to New Hampshire flight tickets
American Airlines
Feb 18
IDA6:42 amIdaho Falls Fanning Field
9h 22m
2 stops
BOS6:04 pmBoston Logan Intl
Feb 26
BOS5:25 amBoston Logan Intl
10h 05m
1 stop
IDA1:30 pmIdaho Falls Fanning Field
$451
Find similar
American Airlines
Feb 18
IDA6:42 amIdaho Falls Fanning Field
9h 22m
2 stops
BOS6:04 pmBoston Logan Intl
Feb 26
BOS12:54 pmBoston Logan Intl
12h 13m
2 stops
IDA11:07 pmIdaho Falls Fanning Field
$456
Find similar
American Airlines
Dec 15
IDA7:00 amIdaho Falls Fanning Field
14h 37m
3 stops
PWM11:37 pmPortland
Dec 17
PWM5:17 pmPortland
21h 29m
2 stops
IDA12:46 pmIdaho Falls Fanning Field
$1,307
Find similar

United Airlines flights from Idaho Falls to New Hampshire

Our best United Airlines deals on Idaho Falls to New Hampshire flight tickets
United Airlines
Jan 28
IDA4:19 pmIdaho Falls Fanning Field
14h 42m
2 stops
PWM9:01 amPortland
Jan 31
PWM6:00 amPortland
11h 31m
2 stops
IDA3:31 pmIdaho Falls Fanning Field
$548
Find similar
United Airlines
Feb 18
IDA5:30 pmIdaho Falls Fanning Field
17h 16m
3 stops
BOS12:46 pmBoston Logan Intl
Feb 26
BOS6:00 amBoston Logan Intl
9h 30m
2 stops
IDA1:30 pmIdaho Falls Fanning Field
$651
Find similar
United Airlines
Feb 14
IDA2:40 pmIdaho Falls Fanning Field
26h 13m
2 stops
MHT6:53 pmManchester
Feb 18
MHT2:33 pmManchester
24h 57m
2 stops
IDA1:30 pmIdaho Falls Fanning Field
$678
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Idaho Falls to New Hampshire 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 December 11, 2025.
Use the filters below to find and compare flights from Idaho Falls to New Hampshire that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Wed 2/18

6:42 am-6:04 pm

2 stops9h 22m

Boston Logan Intl

Thu 2/26

5:25 am-1:30 pm

1 stop10h 05m

$451

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Wed 2/18

6:42 am-6:04 pm

2 stops9h 22m

Boston Logan Intl

Thu 2/26

12:54 pm-11:07 pm

2 stops12h 13m

$456

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Wed 2/18

5:20 pm-6:54 am

1 stop11h 34m

Boston Logan Intl

Thu 2/26

9:02 am-4:43 pm

1 stop9h 41m

$470

Idaho FallsPortland

IDA - PWM

IDAPWM

Idaho Falls Fanning Field

Wed 1/28

4:19 pm-9:01 am

2 stops14h 42m

Portland

Sat 1/31

6:00 am-3:31 pm

2 stops11h 31m

$548

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Wed 2/18

5:30 pm-12:46 pm

3 stops17h 16m

Boston Logan Intl

Thu 2/26

6:00 am-1:30 pm

2 stops9h 30m

$651

Idaho FallsManchester

IDA - MHT

IDAMHT

Idaho Falls Fanning Field

Sat 2/14

2:40 pm-6:53 pm

2 stops26h 13m

Manchester

Wed 2/18

2:33 pm-1:30 pm

2 stops24h 57m

$678

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Sun 1/18

1:34 pm-1:03 am

3 stops57h 29m

$185

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Sun 1/18

2:40 pm-11:46 pm

1 stop7h 06m

$186

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Sun 1/18

7:20 am-7:33 pm

2 stops10h 13m

$191

Idaho FallsBoston

IDA - BOS

IDABOS

Idaho Falls Fanning Field

Tue 1/27

2:40 pm-11:46 pm

1 stop7h 06m

$211

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to New Hampshire from

How to get the cheapest flight ticket from Idaho Falls to New Hampshire

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 day to depart on your flight to New Hampshire?

The cheapest day to depart on your flight to New Hampshire is on a Sunday when prices can be found for as low as $575. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to New Hampshire is Thursday, with ticket prices averaging around $816.

What is the cheapest time of day to depart on your flight to New Hampshire?

According to our data, the cheapest time of day to fly to New Hampshire is in the evening. momondo users have found flights departing from Idaho Falls to New Hampshire in the evening for as low as $562. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the morning because they tend to be around $930. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap Idaho Falls to New Hampshire flight deals and tips

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

Fastest flight time

7h 04m

Direct flights

None
The fastest flight from Idaho Falls to New Hampshire takes 7h 04m
There are no direct flights from Idaho Falls to New Hampshire. There are no popular flight routes from Idaho Falls to New Hampshire.
Search flight deals

  • When did momondo last update prices for flights from Idaho Falls Fanning Field Airport to New Hampshire?

    Prices for flights from Idaho Falls Fanning Field Airport to New Hampshire are refreshed on a daily basis.

  • How many operators does momondo search for flights from Idaho Falls Fanning Field Airport to New Hampshire?

  • How old do you have to be to fly from Idaho Falls Fanning Field Airport to New Hampshire?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho Falls Fanning Field Airport to New Hampshire.

  • What documentation or ID do you need to fly to New Hampshire?

    The travel and health documents you'll need for your trip to New Hampshire 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 New Hampshire. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

Finding the right flight to New Hampshire from Idaho Falls 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 New Hampshire quick and easy, saving you time and money.

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

Yes. All flights to New Hampshire from Idaho Falls on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to New Hampshire from Idaho Falls. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to New Hampshire from Idaho Falls are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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