HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$60+ Cheap flights from New Hampshire to St. Louis (STL)

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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — STL
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

Discover tips and strategies to find the most affordable flight options for your journey from New Hampshire (USNH) to St. Louis (STL). 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 January 21, 2025.

Round-trip from

$170
(CheapOair)

One-way from

$60
(Trip.com)
From New Hampshire to Lambert-St Louis
Search Deals
One-way flight from New Hampshire to Lambert-St Louis
Search Deals

Find flight deals from New Hampshire to St. Louis

Cheapest flights from New Hampshire to St. Louis
Explore the most affordable flight options available from New Hampshire to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This CheapOair deal was found by Cheapflights users on 1/21. 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.
Wed 4/96:00 amBOS - STL
1 stop18h 46mFrontier
Sun 4/134:57 pmSTL - BOS
1 stop6h 50mFrontier
Deal found 1/21$170
This Mytrip deal was found by Cheapflights users on 1/21. 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 1/286:00 amBOS - STL
1 stop9h 43mSpirit Airlines
Thu 1/304:28 pmSTL - BOS
1 stop17h 08mSpirit Airlines
Deal found 1/21$225
This FlightHub deal was found by Cheapflights users on 1/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/136:00 amBOS - STL
1 stop18h 49mMultiple Airlines
Sun 3/235:17 pmSTL - BOS
1 stop15h 52mMultiple Airlines
Deal found 1/21$232
This Gotogate deal was found by Cheapflights users on 1/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/39:02 pmPWM - STL
1 stop27h 29mFrontier
Thu 2/65:05 pmSTL - PWM
1 stop26h 07mFrontier
Deal found 1/20$249
This United Airlines deal was found by Cheapflights users on 1/21. 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 2/199:20 amBOS - STL
1 stop6h 16mUnited Airlines
Mon 2/243:32 pmSTL - BOS
2 stops7h 27mUnited Airlines
Deal found 1/21$279
This American Airlines deal was found by Cheapflights users on 1/21. 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.
Thu 2/1311:38 amBOS - STL
Nonstop3h 13mAmerican Airlines
Mon 2/175:45 amSTL - BOS
1 stop8h 25mAmerican Airlines
Deal found 1/21$313
This Delta deal was found by Cheapflights users on 1/21. 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 3/412:01 pmPWM - STL
1 stop5h 48mDelta
Wed 3/56:00 amSTL - PWM
2 stops9h 44mDelta
Deal found 1/21$322
This Delta deal was found by Cheapflights users on 1/21. 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.
Sun 4/207:00 amBOS - STL
1 stop5h 56mDelta
Wed 4/237:20 amSTL - BOS
1 stop6h 48mDelta
Deal found 1/21$329
This Mytrip deal was found by Cheapflights users on 1/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/36:18 pmPWM - STL
2 stops21h 25mMultiple Airlines
Thu 2/64:28 pmSTL - PWM
2 stops23h 42mMultiple Airlines
Deal found 1/20$353
This United Airlines deal was found by Cheapflights users on 1/21. 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.
Sun 3/96:10 amPWM - STL
2 stops10h 21mUnited Airlines
Wed 3/128:25 amSTL - PWM
1 stop5h 27mUnited Airlines
Deal found 1/21$357
This Southwest deal was found by Cheapflights users on 1/21. 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 3/126:05 pmBOS - STL
Nonstop3h 10mSouthwest
Thu 3/138:50 pmSTL - BOS
Nonstop2h 30mSouthwest
Deal found 1/21$368
This Southwest deal was found by Cheapflights users on 1/21. 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.
Fri 4/186:55 pmMHT - STL
1 stop4h 50mSouthwest
Mon 4/219:10 pmSTL - MHT
1 stop11h 15mSouthwest
Deal found 1/21$370

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

Customize your flight search to find flights from New Hampshire to St. Louis 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 2,558,603 searches. Data last updated January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Wed 4/9

6:00 am-11:46 pm

1 stop18h 46m

Lambert-St Louis

Sun 4/13

4:57 pm-12:47 am

1 stop6h 50m

$170

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Tue 2/18

5:45 am-2:42 pm

2 stops9h 57m

Lambert-St Louis

Tue 2/25

4:00 pm-1:50 pm

3 stops20h 50m

$229

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Thu 3/13

6:00 am-11:49 pm

1 stop18h 49m

Lambert-St Louis

Sun 3/23

5:17 pm-10:09 am

1 stop15h 52m

$232

PortlandSt. Louis

PWM - STL

PWMSTL

Portland

Mon 2/3

9:02 pm-11:31 pm

1 stop27h 29m

Lambert-St Louis

Thu 2/6

5:05 pm-8:12 pm

1 stop26h 07m

$249

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Wed 2/19

9:20 am-2:36 pm

1 stop6h 16m

Lambert-St Louis

Mon 2/24

3:32 pm-11:59 pm

2 stops7h 27m

$279

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Thu 2/13

11:38 am-1:51 pm

Nonstop3h 13m

Lambert-St Louis

Mon 2/17

5:45 am-3:10 pm

1 stop8h 25m

$313

PortlandSt. Louis

PWM - STL

PWMSTL

Portland

Tue 3/4

12:01 pm-4:49 pm

1 stop5h 48m

Lambert-St Louis

Wed 3/5

6:00 am-4:44 pm

2 stops9h 44m

$322

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Sun 4/20

7:00 am-11:56 am

1 stop5h 56m

Lambert-St Louis

Wed 4/23

7:20 am-3:08 pm

1 stop6h 48m

$329

PortlandSt. Louis

PWM - STL

PWMSTL

Portland

Mon 2/3

6:18 pm-2:43 pm

2 stops21h 25m

Lambert-St Louis

Thu 2/6

4:28 pm-5:10 pm

2 stops23h 42m

$353

PortlandSt. Louis

PWM - STL

PWMSTL

Portland

Sun 3/9

6:10 am-3:31 pm

2 stops10h 21m

Lambert-St Louis

Wed 3/12

8:25 am-2:52 pm

1 stop5h 27m

$357

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 29 results
1
2
3

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

Have a flexible travel schedule? Discover the best time to fly to St. Louis from New Hampshire 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 New Hampshire to St. Louis

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

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

Currently, August is the cheapest month in which you can book a flight from New Hampshire to St. Louis (average of $311). Flying from New Hampshire to St. Louis in March is currently the most expensive (average of $356). 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 NH to STL?

Find hourly flight availability from New Hampshire to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from New Hampshire to St. Louis as you normally would.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated January 21, 2025.
Get a feel of what it's like to fly with United Airlines, Southwest and Delta from New Hampshire to St. Louis 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
4,662 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from New Hampshire to St. Louis. 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 into for flights to St. Louis from New Hampshire?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly into when you book flights from New Hampshire to St. Louis.

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

    The cheapest airlines for a one-way flight from New Hampshire to St. Louis are Frontier ($60), Spirit Airlines ($70), and United Airlines ($109).

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

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from New Hampshire to St. Louis 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 New Hampshire to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from New Hampshire to St. Louis (average of $311). Flying from New Hampshire to St. Louis in March is currently the most expensive (average of $356). 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

Traveling to a place near New Hampshire?

Book flights to New Hampshire if you plan to visit one of these locations
Fenton
Fairview Heights
Maryland Heights
Collinsville
Wentzville
Eureka
St. Peters
Festus
Alton
Farmington
Chesterfield

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 New Hampshire to St. Louis

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

Top 2 airlines flying from New Hampshire to St. Louis

Discover the top 2 airlines that operate flights from New Hampshire to St. Louis. 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 2,558,603 searches. Data last updated January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$271Average$436FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$316Average$417FlexibilityNo 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.