How long is the flight from New Hampshire to St. Louis?

United Airlines, American Airlines, and Delta can get you from New Hampshire to St. Louis in just under 5h 32m. Your travel time can differ by up to 2h 06m. New Hampshire and St. Louis are separated by a distance of 1092 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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.

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).

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.

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.

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.

$63+ Flights from New Hampshire to St. Louis

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Cheap 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 December 23, 2025.

Wed 12/3111:09 amBOS - STL

1 stop23h 31mFrontier

Sun 1/410:57 amSTL - BOS

2 stops19h 26mFrontier

Deal found 12/21

$346

Fri 12/2612:03 pmBOS - STL

Nonstop3h 17mAmerican Airlines

Fri 12/264:53 pmSTL - BOS

1 stop5h 30mAmerican Airlines

Deal found 12/20

$372

Wed 12/317:00 amBOS - STL

Nonstop3h 31mAmerican Airlines

Sun 1/45:30 amSTL - BOS

1 stop5h 38mAmerican Airlines

Deal found 12/21

$434

Mon 12/2210:43 amBOS - STL

1 stop23h 57mMultiple Airlines

Tue 1/65:11 pmSTL - BOS

1 stop15h 50mMultiple Airlines

Deal found 12/21

$443

Wed 12/2412:29 pmBOS - STL

2 stops22h 11mMultiple Airlines

Thu 1/83:43 pmSTL - BOS

1 stop8h 36mMultiple Airlines

Deal found 12/22

$471

Wed 12/2412:29 pmBOS - STL

2 stops22h 11mMultiple Airlines

Wed 1/75:11 pmSTL - BOS

1 stop20h 27mMultiple Airlines

Deal found 12/22

$483

Wed 12/317:20 amBOS - STL

Nonstop3h 10mSouthwest

Sun 1/48:40 pmSTL - BOS

Nonstop2h 30mSouthwest

Deal found 12/21

$504

Wed 12/2411:09 amBOS - STL

1 stop23h 31mFrontier

Thu 1/83:43 pmSTL - BOS

1 stop8h 36mFrontier

Deal found 12/22

$524

Thu 12/256:00 amBOS - STL

2 stops27h 12mFrontier

Sun 12/2810:57 amSTL - BOS

1 stop13h 22mFrontier

Deal found 12/21

$539

Sun 12/286:00 amMHT - STL

1 stop7h 32mAmerican Airlines

Thu 1/15:30 amSTL - MHT

1 stop4h 46mAmerican Airlines

Deal found 12/21

$560

Wed 12/2412:29 pmBOS - STL

2 stops22h 11mMultiple Airlines

Sun 1/410:57 amSTL - BOS

1 stop21h 45mMultiple Airlines

Deal found 12/22

$576

Fri 12/266:00 amPWM - STL

1 stop6h 37mUnited Airlines

Thu 1/18:05 amSTL - PWM

1 stop5h 09mUnited Airlines

Deal found 12/21

$592

Best flights from New Hampshire to St. Louis
Discover carefully curated flight deals from New Hampshire to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

Wed 1/217:27 pmPWM - STL

1 stop5h 32mUnited Airlines

Wed 1/288:30 amSTL - PWM

1 stop5h 01mUnited Airlines

Deal found 12/22

$299

Thu 1/154:06 pmMHT - STL

1 stop7h 38mAmerican Airlines

Sun 1/189:54 amSTL - MHT

1 stop5h 37mAmerican Airlines

Deal found 12/20

$301

Wed 1/216:00 amPWM - STL

1 stop7h 33mDelta

Wed 1/2810:19 amSTL - PWM

2 stops11h 08mDelta

Deal found 12/22

$304

Tue 1/206:25 amBOS - STL

Nonstop3h 20mSouthwest

Mon 1/265:55 pmSTL - BOS

Nonstop2h 30mSouthwest

Deal found 12/21

$346

Wed 3/46:00 amMHT - STL

1 stop8h 16mAmerican Airlines

Tue 3/102:06 pmSTL - MHT

1 stop7h 17mAmerican Airlines

Deal found 12/23

$311

Thu 1/157:40 amMHT - STL

2 stops8h 40mSouthwest

Sun 1/186:50 amSTL - MHT

1 stop4h 20mSouthwest

Deal found 12/20

$359

Sat 1/174:10 pmPWM - STL

1 stop6h 03mUnited Airlines

Tue 1/207:00 amSTL - PWM

1 stop5h 56mUnited Airlines

Deal found 12/20

$361

Sun 1/2511:55 amBOS - STL

Nonstop3h 28mAmerican Airlines

Wed 1/286:00 amSTL - BOS

1 stop8h 17mAmerican Airlines

Deal found 12/21

$360

Sat 2/216:15 amBOS - STL

2 stops11h 27mDelta

Sat 2/287:25 amSTL - BOS

2 stops10h 44mDelta

Deal found 12/21

$404

Thu 2/512:00 pmBOS - STL

2 stops9h 00mSouthwest

Sat 2/71:40 pmSTL - BOS

2 stops7h 25mSouthwest

Deal found 12/20

$389

Tue 2/1010:30 amBOS - STL

2 stops9h 57mUnited Airlines

Sat 2/146:25 amSTL - BOS

2 stops7h 47mUnited Airlines

Deal found 12/20

$411

Mon 4/275:47 amMHT - STL

1 stop4h 53mAmerican Airlines

Wed 4/299:38 amSTL - MHT

1 stop6h 09mAmerican Airlines

Deal found 12/21

$377

Mon 3/301:05 pmMHT - STL

2 stops8h 50mSouthwest

Wed 4/15:15 amSTL - MHT

1 stop6h 45mSouthwest

Deal found 12/22

$397

Mon 2/236:28 pmBOS - STL

1 stop27h 37mUnited Airlines

Wed 2/256:25 amSTL - BOS

2 stops11h 16mUnited Airlines

Deal found 12/21

$412

Mon 3/304:23 pmMHT - STL

1 stop6h 03mAmerican Airlines

Wed 4/13:51 pmSTL - MHT

1 stop7h 00mAmerican Airlines

Deal found 12/22

$377

Mon 2/235:50 amBOS - STL

2 stops10h 30mSouthwest

Wed 2/2511:25 amSTL - BOS

2 stops9h 20mSouthwest

Deal found 12/20

$403

Tue 2/243:00 pmBOS - STL

Nonstop3h 27mAmerican Airlines

Fri 2/2711:45 amSTL - BOS

1 stop8h 10mAmerican Airlines

Deal found 12/22

$400

Sun 3/18:50 amMHT - STL

1 stop6h 45mSouthwest

Sat 3/76:40 amSTL - MHT

1 stop4h 40mSouthwest

Deal found 12/21

$407

Mon 4/274:45 pmMHT - STL

1 stop7h 40mSouthwest

Mon 5/41:45 pmSTL - MHT

1 stop7h 10mSouthwest

Deal found 12/22

$407

Fri 1/166:30 amBOS - STL

Nonstop3h 33mAmerican Airlines

Sun 1/182:54 pmSTL - BOS

Nonstop2h 37mAmerican Airlines

Deal found 12/22

$420

Thu 2/56:20 amBOS - STL

Nonstop3h 20mSouthwest

Sun 2/85:55 pmSTL - BOS

Nonstop2h 30mSouthwest

Deal found 12/20

$418

Thu 2/128:31 amBOS - STL

Nonstop3h 33mAmerican Airlines

Sun 2/157:01 amSTL - BOS

1 stop9h 21mAmerican Airlines

Deal found 12/20

$420

Fri 1/236:25 amBOS - STL

Nonstop3h 20mSouthwest

Mon 1/265:55 pmSTL - BOS

Nonstop2h 30mSouthwest

Deal found 12/21

$418

Last-minute flights from New Hampshire to St. Louis
Discover last-minute flight deals from New Hampshire to St. Louis. Data last updated December 23, 2025 and is based on user searches.

Thu 1/16:00 amMHT - STL

1 stop8h 14mAmerican Airlines

Thu 1/16:35 pmSTL - MHT

1 stop5h 10mAmerican Airlines

Deal found 12/22

$243

Wed 1/149:51 amBOS - STL

1 stop9h 23mAmerican Airlines

Thu 1/152:54 pmSTL - BOS

Nonstop2h 37mAmerican Airlines

Deal found 12/21

$337

Thu 1/154:06 pmMHT - STL

1 stop7h 38mAmerican Airlines

Sun 1/189:54 amSTL - MHT

1 stop5h 37mAmerican Airlines

Deal found 12/20

$301

Thu 1/157:40 amMHT - STL

2 stops8h 40mSouthwest

Sun 1/186:50 amSTL - MHT

1 stop4h 20mSouthwest

Deal found 12/20

$359

Sun 1/187:00 amBOS - STL

1 stop5h 31mAmerican Airlines

Mon 1/192:54 pmSTL - BOS

Nonstop2h 37mAmerican Airlines

Deal found 12/21

$356

Mon 1/196:30 amBOS - STL

Nonstop3h 33mAmerican Airlines

Sat 1/2411:05 amSTL - BOS

1 stop10h 26mAmerican Airlines

Deal found 12/21

$346

Tue 1/206:30 amBOS - STL

Nonstop3h 33mAmerican Airlines

Mon 1/266:00 amSTL - BOS

1 stop8h 17mAmerican Airlines

Deal found 12/21

$332

Wed 1/217:27 pmPWM - STL

1 stop5h 32mUnited Airlines

Wed 1/288:30 amSTL - PWM

1 stop5h 01mUnited Airlines

Deal found 12/22

$299

Wed 1/216:00 amPWM - STL

1 stop7h 33mDelta

Wed 1/2810:19 amSTL - PWM

2 stops11h 08mDelta

Deal found 12/22

$304

Wed 1/213:43 pmBOS - STL

1 stop8h 50mMultiple Airlines

Sun 1/255:42 pmSTL - BOS

2 stops19h 30mMultiple Airlines

Deal found 12/21

$336

Thu 1/226:25 amBOS - STL

Nonstop3h 20mSouthwest

Sat 1/248:45 amSTL - BOS

Nonstop2h 35mSouthwest

Deal found 12/21

$341

Sat 1/319:51 amBOS - STL

1 stop9h 22mAmerican Airlines

Tue 2/36:00 amSTL - BOS

1 stop5h 10mAmerican Airlines

Deal found 12/21

$334

One-way flights from New Hampshire to St. Louis
Search for one-way flight options from New Hampshire to St. Louis. Find affordable one-way fares based on user searches. Data last updated December 23, 2025.

Wed 1/213:43 pmBOS - STL

1 stop8h 50mMultiple Airlines

Deal found 12/21

$63

Sun 1/1111:06 amBOS - STL

1 stop21h 59mFrontier

Deal found 12/21

$64

Tue 1/206:00 amBOS - STL

1 stop25h 51mFrontier

Deal found 12/22

$68

Sat 1/1012:03 pmBOS - STL

1 stop11h 30mFrontier

Deal found 12/21

$71

Wed 1/712:29 pmBOS - STL

1 stop11h 04mMultiple Airlines

Deal found 12/22

$75

Thu 1/223:43 pmBOS - STL

1 stop8h 50mMultiple Airlines

Deal found 12/21

$79

Fri 1/233:43 pmBOS - STL

1 stop8h 50mMultiple Airlines

Deal found 12/22

$80

Sat 1/173:43 pmBOS - STL

1 stop7h 51mMultiple Airlines

Deal found 12/21

$81

Mon 1/125:23 pmBOS - STL

2 stops38h 28mMultiple Airlines

Deal found 12/21

$92

Sun 1/253:43 pmBOS - STL

1 stop18h 38mMultiple Airlines

Deal found 12/22

$93

Thu 1/16:00 amMHT - STL

1 stop8h 14mAmerican Airlines

Deal found 12/22

$122

Tue 1/1312:48 pmPWM - STL

1 stop8h 18mDelta

Deal found 12/21

$150

Find flight deals from New Hampshire to St. Louis

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$299 (United Airlines)
One-way from	$63 (Trip.com)
Popular in	April
Cheapest in	August
Average price	$462

Provider with most accurate pricing for Boston Logan Intl-Lambert-St Louis flight deals.

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Provider most trusted by Cheapflights users for Boston Logan Intl-Lambert-St Louis flights.

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From New Hampshire to Lambert-St Louis

Search Deals

One-way flight from New Hampshire to Lambert-St Louis

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($38 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from New Hampshire to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSt. Louis

PWM - STL

PWMSTL

Portland

Wed 1/21

7:27 pm-11:59 pm

1 stop5h 32m

Lambert-St Louis

Wed 1/28

8:30 am-2:31 pm

1 stop5h 01m

$299

ManchesterSt. Louis

MHT - STL

MHTSTL

Manchester

Thu 1/15

4:06 pm-10:44 pm

1 stop7h 38m

Lambert-St Louis

Sun 1/18

9:54 am-4:31 pm

1 stop5h 37m

$301

PortlandSt. Louis

PWM - STL

PWMSTL

Portland

Wed 1/21

6:00 am-12:33 pm

1 stop7h 33m

Lambert-St Louis

Wed 1/28

10:19 am-10:27 pm

2 stops11h 08m

$304

ManchesterSt. Louis

MHT - STL

MHTSTL

Manchester

Wed 3/4

6:00 am-1:16 pm

1 stop8h 16m

Lambert-St Louis

Tue 3/10

2:06 pm-10:23 pm

1 stop7h 17m

$311

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Tue 1/20

6:25 am-8:45 am

Nonstop3h 20m

Lambert-St Louis

Mon 1/26

5:55 pm-9:25 pm

Nonstop2h 30m

$346

ManchesterSt. Louis

MHT - STL

MHTSTL

Manchester

Thu 1/15

7:40 am-3:20 pm

2 stops8h 40m

Lambert-St Louis

Sun 1/18

6:50 am-12:10 pm

1 stop4h 20m

$359

BostonSt. Louis

BOS - STL

BOSSTL

Boston Logan Intl

Sun 1/25

11:55 am-2:23 pm

Nonstop3h 28m

Lambert-St Louis

Wed 1/28

6:00 am-3:17 pm

1 stop8h 17m

$360

PortlandSt. Louis

PWM - STL

PWMSTL

Portland

Sat 1/17

4:10 pm-9:13 pm

1 stop6h 03m

Lambert-St Louis

Tue 1/20

7:00 am-1:56 pm

1 stop5h 56m

$361

ManchesterSt. Louis

MHT - STL

MHTSTL

Manchester

Mon 4/27

5:47 am-9:40 am

1 stop4h 53m

Lambert-St Louis

Wed 4/29

9:38 am-4:47 pm

1 stop6h 09m

$377

ManchesterSt. Louis

MHT - STL

MHTSTL

Manchester

Mon 3/30

4:23 pm-9:26 pm

1 stop6h 03m

Lambert-St Louis

Wed 4/1

3:51 pm-11:51 pm

1 stop7h 00m

$377

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 38 results

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.

Cheapflights Insights

Everything you need to know about your flight from New Hampshire to St. Louis

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 $179). Flying from New Hampshire to St. Louis in May is currently the most expensive (average of $358). 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?

One of the essential ways to save on airfare from New Hampshire to St. Louis is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 16% on airfare.

Related info for your journey

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.
How long is the flight from New Hampshire to St. Louis?
United Airlines, American Airlines, and Delta can get you from New Hampshire to St. Louis in just under 5h 32m. Your travel time can differ by up to 2h 06m. New Hampshire and St. Louis are separated by a distance of 1092 mi. Both multi-stop and nonstop flights can be found to your destination and back.
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 $179). Flying from New Hampshire to St. Louis in May is currently the most expensive (average of $358). 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

Edwardsville

O'Fallon

Swansea

Fairview Heights

Maryland Heights

Collinsville

Eureka

Glencoe

Chesterfield

Alton

Farmington

Festus

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Top 2 airlines flying from New Hampshire to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
Southwest	Cheapest$264	Average$436	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$274	Average$395	FlexibilityNo cancel fee	On-time71%

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$63+ 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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from New Hampshire to St. Louis

Cheapest flights from New Hampshire to St. LouisExplore 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 December 23, 2025.

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 December 23, 2025.

Find flight deals from New Hampshire to St. Louis

Keep the following information in mind while searching for New Hampshire to St. Louis flight deals. Data was last updated December 23, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from New Hampshire to St. Louis that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from New Hampshire to St. Louis

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

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 December 23, 2025.

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?

How long is the flight from New Hampshire to St. Louis?

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

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

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

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

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

Traveling to a place near St. Louis?

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Alternative routes for New Hampshire to St. Louis

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Top 2 airlines flying from New Hampshire to St. Louis

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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 December 23, 2025.