Cheap flights from St. Louis (STL) to New Hampshire from $55

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 4/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — MHT
Mar 23 — Mar 301

How far in advance should I book a flight from St. Louis to New Hampshire?

Travelers have found it’s best to book a flight 37 days in advance to save up to 94% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 37 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to New Hampshire 1-2 weeks in advance for as low as $539, or $648 for flights within the next 24 hours.

What is the cheapest month to fly from St. Louis to New Hampshire?

January is one of the best times of the year to fly to New Hampshire from St. Louis. Prices for January average $415 per person but you can even find prices for as low as $125. The most expensive prices can be found in the month of June. Opting for a January flight can save you 13% on your journey compared to booking in June

When is the cheapest time to fly from St. Louis to New Hampshire (STL - NH)?

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.

Cheap Frontier flights from St. Louis to New Hampshire

Explore cheap flight options specifically provided by Frontier for the route between St. Louis and New Hampshire. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Find some of the cheapest Frontier flights traveling from St. Louis to New Hampshire. Deals update often to give you more flight options matching your criteria
Tue 3/268:24 pmSTL - BOS
1 stop11h 21mFrontier
Mon 4/299:08 amBOS - STL
1 stop12h 03mFrontier
Deal found 3/17$135
Sat 5/49:27 pmSTL - BOS
1 stop9h 41mFrontier
Sat 5/119:08 amBOS - STL
1 stop12h 24mFrontier
Deal found 3/17$137
Fri 5/37:16 pmSTL - BOS
1 stop11h 52mFrontier
Mon 5/69:08 amBOS - STL
1 stop23h 05mFrontier
Deal found 3/17$152
Thu 4/48:24 pmSTL - BOS
1 stop11h 21mFrontier
Sat 4/69:45 amBOS - STL
1 stop23h 36mFrontier
Deal found 3/18$188
Tue 3/268:24 pmSTL - BOS
1 stop11h 21mFrontier
Thu 4/49:45 amBOS - STL
1 stop23h 36mFrontier
Deal found 3/18$190
Tue 3/268:24 pmSTL - BOS
1 stop11h 21mFrontier
Thu 4/411:23 amBOS - STL
2 stops21h 58mFrontier
Deal found 3/18$195
Mon 4/229:11 pmSTL - BOS
1 stop9h 57mFrontier
Sat 4/279:08 amBOS - STL
1 stop12h 24mFrontier
Deal found 3/17$208
Thu 5/97:16 pmSTL - BOS
1 stop11h 52mFrontier
Mon 5/139:08 amBOS - STL
1 stop23h 05mFrontier
Deal found 3/17$218
Thu 3/288:24 pmSTL - BOS
1 stop11h 21mFrontier
Sat 4/69:45 amBOS - STL
1 stop23h 36mFrontier
Deal found 3/18$221

Cheap Spirit Airlines flights from St. Louis to New Hampshire

Explore cheap flight options specifically provided by Spirit Airlines for the route between St. Louis and New Hampshire. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Browse through some of the cheapest Spirit Airlines flights traveling from St. Louis to New Hampshire. Deals frequently update to provide users with more options.
Tue 3/262:25 pmSTL - BOS
1 stop7h 49mSpirit Airlines
Tue 4/23:56 pmBOS - STL
1 stop29h 17mSpirit Airlines
Deal found 3/18$188
Tue 3/262:25 pmSTL - BOS
1 stop7h 49mSpirit Airlines
Mon 4/18:33 pmBOS - STL
1 stop18h 07mSpirit Airlines
Deal found 3/18$228
Wed 3/279:08 pmSTL - BOS
2 stops14h 13mSpirit Airlines
Tue 4/25:17 pmBOS - STL
1 stop27h 56mSpirit Airlines
Deal found 3/18$229
Tue 3/262:25 pmSTL - BOS
1 stop7h 49mSpirit Airlines
Tue 4/26:10 amBOS - STL
2 stops39h 03mSpirit Airlines
Deal found 3/18$230
Wed 3/279:08 pmSTL - BOS
2 stops14h 13mSpirit Airlines
Wed 4/33:56 pmBOS - STL
1 stop27h 54mSpirit Airlines
Deal found 3/18$233
Thu 3/287:48 pmSTL - BOS
1 stop14h 34mSpirit Airlines
Tue 4/25:17 pmBOS - STL
1 stop27h 56mSpirit Airlines
Deal found 3/18$237
Tue 3/262:25 pmSTL - BOS
1 stop7h 49mSpirit Airlines
Tue 4/26:10 amBOS - STL
3 stops39h 03mSpirit Airlines
Deal found 3/18$250
Thu 5/166:19 pmSTL - BOS
1 stop16h 08mSpirit Airlines
Sat 5/186:10 amBOS - STL
1 stop12h 19mSpirit Airlines
Deal found 3/16$252
Fri 4/510:57 amSTL - BOS
1 stop11h 17mSpirit Airlines
Sun 4/77:28 pmBOS - STL
2 stops22h 17mSpirit Airlines
Deal found 3/17$265

Cheap St. Louis to New Hampshire flights in March & April 2024

Find cheap flight options from St. Louis to New Hampshire specifically for the months of March and April 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,145,932 searches. Prices were last updated on March 19, 2024.
Check out some of the best flight deals from St. Louis to New Hampshire in 2024. More deals are always being added, so be sure to check back regularly.
Sat 4/279:27 pmSTL - BOS
1 stop9h 41mFrontier
Mon 4/299:08 amBOS - STL
1 stop12h 03mFrontier
Deal found 3/18$98
Tue 3/268:24 pmSTL - BOS
1 stop11h 21mFrontier
Mon 4/299:08 amBOS - STL
1 stop12h 03mFrontier
Deal found 3/17$135
Mon 4/159:11 pmSTL - BOS
1 stop9h 57mFrontier
Mon 4/229:08 amBOS - STL
1 stop12h 03mFrontier
Deal found 3/18$137
Wed 4/249:53 pmSTL - BOS
1 stop9h 15mFrontier
Mon 4/299:08 amBOS - STL
1 stop12h 03mFrontier
Deal found 3/18$138
Wed 4/249:53 pmSTL - BOS
1 stop9h 15mFrontier
Sat 4/279:08 amBOS - STL
1 stop12h 24mFrontier
Deal found 3/18$148
Sat 4/279:27 pmSTL - BOS
1 stop9h 41mFrontier
Thu 5/29:08 amBOS - STL
1 stop23h 05mFrontier
Deal found 3/18$149
Tue 4/28:24 pmSTL - BOS
1 stop11h 21mFrontier
Wed 4/1010:21 amBOS - STL
2 stops11h 32mFrontier
Deal found 3/18$164
Mon 4/229:11 pmSTL - BOS
1 stop9h 57mFrontier
Mon 4/299:08 amBOS - STL
1 stop12h 03mFrontier
Deal found 3/18$168
Tue 4/28:24 pmSTL - BOS
1 stop11h 21mMultiple Airlines
Mon 4/88:33 pmBOS - STL
1 stop12h 48mMultiple Airlines
Deal found 3/18$172

St. Louis to New Hampshire 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and New Hampshire in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Check out some of the best flight deals from St. Louis to New Hampshire in 2024. More deals are always being added, so be sure to check back regularly.
Sat 4/279:27 pmSTL - BOS
1 stop9h 41mFrontier
Mon 4/299:08 amBOS - STL
1 stop12h 03mFrontier
Deal found 3/18$98
Tue 3/268:24 pmSTL - BOS
1 stop11h 21mFrontier
Mon 4/299:08 amBOS - STL
1 stop12h 03mFrontier
Deal found 3/17$135
Sat 5/49:27 pmSTL - BOS
1 stop9h 41mFrontier
Sat 5/119:08 amBOS - STL
1 stop12h 24mFrontier
Deal found 3/17$137
Wed 4/249:53 pmSTL - BOS
1 stop9h 15mFrontier
Mon 4/299:08 amBOS - STL
1 stop12h 03mFrontier
Deal found 3/18$138
Wed 4/249:53 pmSTL - BOS
1 stop9h 15mFrontier
Sat 4/279:08 amBOS - STL
1 stop12h 24mFrontier
Deal found 3/18$148
Sat 4/279:27 pmSTL - BOS
1 stop9h 41mFrontier
Thu 5/29:08 amBOS - STL
1 stop23h 05mFrontier
Deal found 3/18$149
Fri 5/37:16 pmSTL - BOS
1 stop11h 52mFrontier
Mon 5/69:08 amBOS - STL
1 stop23h 05mFrontier
Deal found 3/17$152
Tue 4/28:24 pmSTL - BOS
1 stop11h 21mFrontier
Wed 4/1010:21 amBOS - STL
2 stops11h 32mFrontier
Deal found 3/18$164
Mon 4/229:11 pmSTL - BOS
1 stop9h 57mFrontier
Mon 4/299:08 amBOS - STL
1 stop12h 03mFrontier
Deal found 3/18$168

Non-stop flights to New Hampshire from St. Louis

Discover non-stop flight options from St. Louis to New Hampshire. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Take a look at some of the direct flights traveling from St. Louis to New Hampshire in the near future. Search for alternative flights from St. Louis to New Hampshire by utilizing the search form above.
Tue 6/1111:15 amSTL - BOS
Nonstop2h 43mAmerican Airlines
Tue 6/257:00 amBOS - STL
Nonstop3h 07mAmerican Airlines
Deal found 3/17$291
Tue 5/710:30 amSTL - BOS
Nonstop2h 49mAmerican Airlines
Wed 5/157:00 amBOS - STL
Nonstop3h 10mAmerican Airlines
Deal found 3/17$311
Wed 7/316:51 pmSTL - BOS
Nonstop2h 38mAmerican Airlines
Thu 8/87:00 amBOS - STL
Nonstop3h 08mAmerican Airlines
Deal found 3/17$331
Mon 5/61:40 pmSTL - BOS
Nonstop2h 49mAmerican Airlines
Tue 5/77:00 amBOS - STL
Nonstop3h 10mAmerican Airlines
Deal found 3/18$341
Fri 4/261:47 pmSTL - BOS
Nonstop2h 42mAmerican Airlines
Tue 4/307:00 amBOS - STL
Nonstop3h 24mAmerican Airlines
Deal found 3/17$343
Wed 4/1010:30 amSTL - BOS
Nonstop2h 42mAmerican Airlines
Fri 4/197:00 amBOS - STL
Nonstop3h 24mAmerican Airlines
Deal found 3/18$351
Fri 8/26:51 pmSTL - BOS
Nonstop2h 38mAmerican Airlines
Sat 8/107:00 amBOS - STL
Nonstop3h 08mAmerican Airlines
Deal found 3/17$371
Tue 7/96:51 pmSTL - BOS
Nonstop2h 38mAmerican Airlines
Tue 7/167:00 amBOS - STL
Nonstop3h 12mAmerican Airlines
Deal found 3/17$373
Wed 6/266:51 pmSTL - BOS
Nonstop2h 43mAmerican Airlines
Wed 7/37:00 amBOS - STL
Nonstop3h 07mAmerican Airlines
Deal found 3/17$381

St. Louis to New Hampshire flights leaving soon

Find last-minute flight options from St. Louis to New Hampshire for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Consider one of these great deals we found on last-minute flights from St. Louis to New Hampshire. Tip: verify your flight details before completing your reservation.
Tue 3/268:24 pmSTL - BOS
1 stop11h 21mFrontier
Mon 4/299:08 amBOS - STL
1 stop12h 03mFrontier
Deal found 3/17$135
Wed 3/279:08 pmSTL - BOS
1 stop10h 37mMultiple Airlines
Wed 4/39:45 amBOS - STL
1 stop11h 28mMultiple Airlines
Deal found 3/18$176
Tue 3/268:24 pmSTL - BOS
1 stop11h 21mMultiple Airlines
Wed 4/39:45 amBOS - STL
1 stop11h 28mMultiple Airlines
Deal found 3/18$179
Tue 3/262:25 pmSTL - BOS
1 stop7h 49mSpirit Airlines
Tue 4/23:56 pmBOS - STL
1 stop29h 17mSpirit Airlines
Deal found 3/18$188
Tue 3/268:24 pmSTL - BOS
1 stop11h 21mFrontier
Thu 4/49:45 amBOS - STL
1 stop23h 36mFrontier
Deal found 3/18$190
Tue 3/268:24 pmSTL - BOS
1 stop11h 21mFrontier
Thu 4/411:23 amBOS - STL
2 stops21h 58mFrontier
Deal found 3/18$195
Tue 3/268:24 pmSTL - BOS
1 stop11h 21mMultiple Airlines
Mon 4/2910:56 pmBOS - STL
2 stops17h 54mMultiple Airlines
Deal found 3/17$197
Wed 3/279:08 pmSTL - BOS
1 stop10h 37mMultiple Airlines
Thu 4/45:40 pmBOS - STL
1 stop15h 41mMultiple Airlines
Deal found 3/18$208
Tue 3/268:24 pmSTL - BOS
1 stop11h 21mFrontier
Sat 4/69:45 amBOS - STL
1 stop23h 36mFrontier
Deal found 3/18$218

One-way flights to New Hampshire from St. Louis

Search for one-way flight options from St. Louis to New Hampshire. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,145,932 searches. Data last updated March 19, 2024.
Take a look at some of the best available options we've come across on one-way flights from St. Louis to New Hampshire. For those needing a return trip from St. Louis, there is a search form available above.
Sat 4/139:27 pmSTL - BOS
1 stop9h 41mFrontier
Deal found 3/17$55
Sun 4/287:16 pmSTL - BOS
1 stop11h 52mFrontier
Deal found 3/18$65
Tue 4/28:24 pmSTL - BOS
1 stop11h 21mFrontier
Deal found 3/18$81
Wed 5/159:53 pmSTL - BOS
1 stop14h 10mMultiple Airlines
Deal found 3/17$86
Wed 5/159:53 pmSTL - BOS
1 stop14h 10mMultiple Airlines
Deal found 3/18$89
Wed 3/279:08 pmSTL - BOS
1 stop10h 37mMultiple Airlines
Deal found 3/17$92
Tue 4/1610:34 amSTL - BOS
1 stop21h 32mSpirit Airlines
Deal found 3/18$95
Fri 3/298:24 pmSTL - BOS
1 stop11h 21mFrontier
Deal found 3/18$96
Wed 5/159:53 pmSTL - BOS
2 stops22h 44mMultiple Airlines
Deal found 3/18$99

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 3,145,932 searches. Data last updated March 19, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$137 - $406

Route

Depart

Return

Price

Lambert-St LouisBoston Logan Intl

STL - BOS

STLBOS

Lambert-St Louis

Sat 5/4

1 stop9h 41m

Boston Logan Intl

Sat 5/11

1 stop12h 24m

$137

Lambert-St LouisBoston Logan Intl

STL - BOS

STLBOS

Lambert-St Louis

Fri 5/3

1 stop11h 52m

Boston Logan Intl

Mon 5/6

1 stop23h 05m

$152

Lambert-St LouisBoston Logan Intl

STL - BOS

STLBOS

Lambert-St Louis

Thu 4/4

1 stop11h 21m

Boston Logan Intl

Sat 4/6

1 stop23h 36m

$188

Lambert-St LouisBoston Logan Intl

STL - BOS

STLBOS

Lambert-St Louis

Tue 4/30

1 stop5h 22m

Boston Logan Intl

Wed 5/1

1 stop5h 13m

$196

Lambert-St LouisBoston Logan Intl

STL - BOS

STLBOS

Lambert-St Louis

Sun 4/28

1 stop11h 52m

Boston Logan Intl

Fri 5/3

1 stop21h 49m

$201

Lambert-St LouisBoston Logan Intl

STL - BOS

STLBOS

Lambert-St Louis

Mon 4/22

2 stops12h 27m

Boston Logan Intl

Wed 4/24

1 stop8h 02m

$205

Lambert-St LouisBoston Logan Intl

STL - BOS

STLBOS

Lambert-St Louis

Thu 5/16

1 stop16h 08m

Boston Logan Intl

Sat 5/18

1 stop12h 19m

$252

Lambert-St LouisBoston Logan Intl

STL - BOS

STLBOS

Lambert-St Louis

Tue 5/7

Nonstop2h 49m

Boston Logan Intl

Wed 5/15

1 stop8h 27m

$261

Lambert-St LouisBoston Logan Intl

STL - BOS

STLBOS

Lambert-St Louis

Fri 4/12

1 stop7h 06m

Boston Logan Intl

Tue 4/16

1 stop7h 53m

$406

Flights are sorted by cheapest first

Deals found on 3/17

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 March 19, 2024.
Get a feel of what it's like to fly with Frontier, Spirit Airlines and American 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.
8.1
Very good
11,551 reviews

Boarding

8.2

Food

7.5

Entertainment

8.1

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 10

It was a good experience other than a short delay.

8.1
Very good
11,551 reviews
8.1
Very good
11,551 reviews

Boarding

8.2

Food

7.5

Entertainment

8.1

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 10

It was a good experience other than a short delay.

7.4
Good
11,602 reviews
8.1
Very good
11,551 reviews

Boarding

8.2

Food

7.5

Entertainment

8.1

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 10

It was a good experience other than a short delay.

7.3
Good
15,312 reviews
8.1
Very good
11,551 reviews

Boarding

8.2

Food

7.5

Entertainment

8.1

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 10

It was a good experience other than a short delay.

7.3
Good
704 reviews
8.1
Very good
11,551 reviews

Boarding

8.2

Food

7.5

Entertainment

8.1

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 10

It was a good experience other than a short delay.

6.5
Okay
8,875 reviews
8.1
Very good
11,551 reviews

Boarding

8.2

Food

7.5

Entertainment

8.1

Overall

8.1

Crew

8.6

Comfort

7.9

Reviews

1 / 10

It was a good experience other than a short delay.

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.

  • Can I find flights from St. Louis to New Hampshire for under $200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to New Hampshire for under $200. The cheapest flight booked recently is on Frontier for just $137, but on average you can expect to pay $215.

  • Are there nonstop flights from St. Louis to New Hampshire for under $300 on Cheapflights?

    Cheapflights has at least 20 direct flights from St. Louis to New Hampshire under $300. A good price for a nonstop flight from St. Louis to New Hampshire is less than $386.

  • Are there last-minute flights available from St. Louis to New Hampshire for under $200?

    There are currently 20+ open flights from St. Louis to New Hampshire within the next 7 days for less than $200.

  • What does STL to MHT mean?

    STL stands for Lambert-St Louis Airport, while MHT stands for Manchester Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Portsmouth Pease Intl Airport (PSM), Lebanon Municipal Airport (LEB) are other airports near this flight route and their unique identifiers/IATA codes.

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.

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 3,145,932 searches. Data last updated March 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$174Average$290FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$362Average$525FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Search flights from St. Louis to New Hampshire by cabin class

Find flights from St. Louis to New Hampshire, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to New Hampshire?

Cheapflights helps you search for flights from St. Louis to New Hampshire via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to New Hampshire?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from St. Louis to New Hampshire for you. Better yet — we are completely free to use.

Can Cheapflights find flights from St. Louis to New Hampshire with no change fees?

Yes, we can. To see specific flights from St. Louis to New Hampshire with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from St. Louis to New Hampshire become cheaper?

Yes, Cheapflights offers price alerts on St. Louis to New Hampshire flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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.