HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
New Hampshire

$95+ Cheap flights from St. Louis (STL) to New Hampshire

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MHT
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to New Hampshire with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from St. Louis to New Hampshire

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to New Hampshire (USNH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Find flight deals from St. Louis to New Hampshire

Cheapest flights from St. Louis to New Hampshire
Explore the most affordable flight options available from St. Louis to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This CheapOair deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/285:21 pmSTL - BOS
1 stop15h 13mMultiple Airlines
Wed 12/46:00 amBOS - STL
1 stop18h 24mMultiple Airlines
Deal found 11/19$286
This Mytrip deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/244:27 pmSTL - BOS
2 stops21h 29mSpirit Airlines
Wed 1/18:30 pmBOS - STL
2 stops19h 51mSpirit Airlines
Deal found 11/19$297
This CheapOair deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/226:32 pmSTL - BOS
1 stop28h 59mFrontier
Sun 12/86:00 amBOS - STL
1 stop18h 24mFrontier
Deal found 11/19$298
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/115:28 pmSTL - BOS
1 stop4h 49mUnited Airlines
Thu 12/127:30 amBOS - STL
2 stops9h 04mUnited Airlines
Deal found 11/20$311
This Delta deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2410:13 amSTL - BOS
1 stop6h 35mDelta
Wed 1/15:25 amBOS - STL
1 stop5h 08mDelta
Deal found 11/19$317
This American Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/115:45 amSTL - BOS
1 stop8h 30mAmerican Airlines
Wed 12/186:25 amBOS - STL
Nonstop3h 18mAmerican Airlines
Deal found 11/19$320
This Southwest deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2510:40 amSTL - MHT
1 stop4h 25mSouthwest
Mon 12/305:45 pmMHT - STL
1 stop6h 25mSouthwest
Deal found 11/19$349
This American Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/176:10 amSTL - PWM
1 stop6h 44mAmerican Airlines
Tue 12/246:29 amPWM - STL
1 stop8h 08mAmerican Airlines
Deal found 11/19$361
This Delta deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/35:05 pmSTL - PWM
1 stop5h 42mDelta
Tue 12/106:10 amPWM - STL
1 stop6h 58mDelta
Deal found 11/19$381
This Southwest deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/171:35 pmSTL - PWM
2 stops7h 55mSouthwest
Tue 12/241:15 pmPWM - STL
1 stop8h 30mSouthwest
Deal found 11/19$396
This CheapOair deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/236:32 pmSTL - PWM
1 stop23h 43mFrontier
Sun 12/18:15 pmPWM - STL
1 stop12h 26mFrontier
Deal found 11/19$407
This American Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/256:30 amSTL - MHT
1 stop4h 45mAmerican Airlines
Mon 12/305:45 amMHT - STL
1 stop5h 11mAmerican Airlines
Deal found 11/20$408

Find flights from St. Louis to New Hampshire within your budget

Customize your flight search to find flights from St. Louis 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, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Thu 1/9

5:05 pm-8:12 pm

1 stop26h 07m

Portland

Mon 1/13

9:02 pm-11:27 pm

1 stop27h 25m

$218

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Fri 1/3

9:47 am-12:39 am

1 stop13h 52m

Boston Logan Intl

Mon 1/6

5:45 am-11:40 pm

1 stop18h 55m

$284

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Tue 12/17

4:26 pm-12:38 am

1 stop7h 12m

Boston Logan Intl

Sun 12/29

6:00 am-11:58 pm

1 stop18h 58m

$291

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 2/20

7:57 am-11:29 pm

2 stops14h 32m

Boston Logan Intl

Sun 2/23

6:00 am-7:07 am

3 stops26h 07m

$294

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Wed 12/4

5:28 pm-11:17 pm

1 stop4h 49m

Boston Logan Intl

Tue 12/10

7:30 am-3:34 pm

2 stops9h 04m

$301

St. LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Sat 2/8

5:00 pm-11:51 pm

1 stop5h 51m

Portland

Sat 2/15

1:10 pm-6:01 pm

1 stop5h 51m

$316

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Tue 12/24

10:13 am-5:48 pm

1 stop6h 35m

Boston Logan Intl

Wed 1/1

5:25 am-9:33 am

1 stop5h 08m

$317

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Tue 1/14

9:25 am-1:05 pm

Nonstop2h 40m

Boston Logan Intl

Wed 1/15

8:45 am-4:20 pm

1 stop8h 35m

$322

St. LouisBoston

STL - BOS

STLBOS

Lambert-St Louis

Thu 2/6

7:10 pm-10:40 pm

Nonstop2h 30m

Boston Logan Intl

Sun 2/9

6:55 am-9:10 am

Nonstop3h 15m

$344

St. LouisManchester

STL - MHT

STLMHT

Lambert-St Louis

Sat 1/18

7:15 am-2:35 pm

1 stop6h 20m

Manchester

Mon 1/20

1:05 pm-9:40 pm

1 stop9h 35m

$346

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 33 results
1
2
3
4

Best time to book a flight from St. Louis to New Hampshire

Have a flexible travel schedule? Discover the best time to fly to New Hampshire from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from St. Louis to New Hampshire

Get recent, data-driven insights about flights from St. Louis to New Hampshire including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Louis to New Hampshire?

Currently, January is the cheapest month in which you can book a flight from St. Louis to New Hampshire (average of $334). Flying from St. Louis to New Hampshire in June is currently the most expensive (average of $453). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to NH?

Find hourly flight availability from St. Louis to New Hampshire. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

When flying from St. Louis to New Hampshire, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing New Hampshire

Get insights into the airlines that provide service to New Hampshire. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to New Hampshire. Reviews last updated November 20, 2024.
Get a feel of what it's like to fly with Southwest, American Airlines and United Airlines from St. Louis to New Hampshire by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,461 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,171 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,014 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Entertainment

7.7

Food

7.2

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from St. Louis to New Hampshire. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to New Hampshire?

    For a flight from St. Louis to New Hampshire, you will be flying from Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city.

  • What are the cheapest airlines to fly from St. Louis to New Hampshire one-way?

    $95 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and Southwest, with prices starting from $177 and $178, respectively.

  • What are the most popular routes from St. Louis to New Hampshire?

    When deciding which route to take from St. Louis to New Hampshire consider Lambert-St Louis - Boston Logan Intl, Lambert-St Louis - Portland or Lambert-St Louis - Manchester as they are the most popular.

  • Can I find deals for flights from St. Louis to New Hampshire that include hotel bookings?

    Yes. In addition to deals on St. Louis to New Hampshire flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to New Hampshire?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to New Hampshire.

  • Can I find deals for business class flights from St. Louis to New Hampshire?

    Yes. Cheapflights offers flight deals from St. Louis to New Hampshire by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to New Hampshire?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to New Hampshire (average of $334). Flying from St. Louis to New Hampshire in June is currently the most expensive (average of $453). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to New Hampshire

See prices for flight routes from nearby airports that may be better suited for you.
Kansas City to LaGuardia flights
St. Louis to Las Vegas flights
St. Louis to LaGuardia flights
Kansas City to Newark flights
Kansas City to Las Vegas flights
St. Louis to Newark flights
St. Louis to Orlando flights
Kansas City to John F Kennedy Intl flights
St. Louis to Denver flights
Kansas City to Denver flights
Kansas City to O'Hare Intl flights
St. Louis to Sky Harbor Intl flights
St. Louis to John F Kennedy Intl flights
St. Louis to Dallas/Fort Worth flights
Kansas City to Seattle flights
Kansas City to Orlando flights
St. Louis to Seattle flights
St. Louis to Miami flights
St. Louis to Los Angeles flights
St. Louis to Hobby flights
Kansas City to Los Angeles flights
Kansas City to Dallas/Fort Worth flights
Kansas City to Hobby flights
Kansas City to Miami flights
St. Louis to O'Hare Intl flights
Kansas City to Sky Harbor Intl flights
Kansas City to George Bush Intcntl flights
St. Louis to George Bush Intcntl flights
Kansas City to Dulles Intl flights
Kansas City to Atlanta flights
St. Louis to San Francisco flights
St. Louis to Dulles Intl flights
St. Louis to Salt Lake City flights
St. Louis to Ontario flights
St. Louis to Boston flights
Kansas City to Boston flights
Kansas City to Salt Lake City flights
Kansas City to Tampa flights
Kansas City to Honolulu flights
Kansas City to Reagan-National flights
St. Louis to Atlanta flights
Kansas City to Minneapolis flights
St. Louis to Fort Lauderdale flights
St. Louis to New Orleans flights
Kansas City to Fort Lauderdale flights
Kansas City to Baltimore flights
St. Louis to San Diego flights
St. Louis to Tampa flights
Kansas City to Philadelphia flights
St. Louis to Reagan-National flights

Top 2 airlines flying from St. Louis to New Hampshire

Discover the top 2 airlines that operate flights from St. Louis to New Hampshire. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$286Average$397FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$296Average$386FlexibilityNo cancel feeOn-time63%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines