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Lehigh Valley

$249+ Cheap flights from St. Louis (STL) to Lehigh Valley

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ABE
Dec 14 — Dec 211
Sun 12/14
Sun 12/21
1 adult, Economy
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Cheap flight deals from St. Louis to Lehigh Valley

Keep the following information in mind while searching for St. Louis to Lehigh Valley flight deals. Data was last updated November 14, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(Delta)

Popular in

February

Cheapest in

September

Average price

$362
Provider with most accurate pricing for Lambert-St Louis-Allentown-Bethlehem flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Allentown-Bethlehem flights.
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From Lambert-St Louis to Lehigh Valley
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from St. Louis to Lehigh Valley

Cheapest flights from St. Louis to Lehigh Valley
Explore the most affordable flight options available from St. Louis to Lehigh Valley. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 14, 2025.

This Delta deal was found by Cheapflights users on 11/12. 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.
Wed 12/39:30 amSTL - ABE
1 stop6h 08mDelta
Wed 12/105:23 pmABE - STL
1 stop5h 34mDelta
Deal found 11/12$249
This United Airlines deal was found by Cheapflights users on 11/13. 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.
Fri 11/286:30 amSTL - ABE
1 stop4h 18mUnited Airlines
Tue 12/25:22 pmABE - STL
1 stop6h 23mUnited Airlines
Deal found 11/13$349
This Delta deal was found by Cheapflights users on 11/13. 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.
Wed 11/196:00 amSTL - ABE
1 stop5h 16mDelta
Sat 11/226:10 amABE - STL
1 stop5h 13mDelta
Deal found 11/13$354
This United Airlines deal was found by Cheapflights users on 11/12. 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 12/36:30 amSTL - ABE
1 stop4h 22mUnited Airlines
Wed 12/105:22 pmABE - STL
2 stops17h 42mUnited Airlines
Deal found 11/12$567
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/234:13 pmSTL - ABE
1 stop28h 18mMultiple Airlines
Sun 11/306:15 amABE - STL
1 stop18h 42mMultiple Airlines
Deal found 11/13$598
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:50 amSTL - ABE
2 stops28h 25mMultiple Airlines
Mon 12/291:32 pmABE - STL
1 stop22h 24mMultiple Airlines
Deal found 11/12$610
This United Airlines deal was found by Cheapflights users on 11/12. 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.
Mon 12/156:30 amSTL - ABE
1 stop4h 22mUnited Airlines
Fri 12/195:07 pmABE - STL
1 stop6h 36mUnited Airlines
Deal found 11/12$626
This Mytrip deal was found by Cheapflights users on 11/13. 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.
Fri 11/149:50 amSTL - ABE
3 stops27h 04mMultiple Airlines
Sun 11/1612:11 pmABE - STL
2 stops7h 25mMultiple Airlines
Deal found 11/13$636
This United Airlines deal was found by Cheapflights users on 11/14. 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.
Sat 11/296:30 amSTL - ABE
1 stop4h 18mUnited Airlines
Wed 12/31:00 pmABE - STL
1 stop5h 03mUnited Airlines
Deal found 11/14$638

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Lehigh Valley 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 November 14, 2025.
Use the filters below to find and compare flights from St. Louis to Lehigh Valley that are best for you.

Fly from

St. Louis

Fly to

Lehigh Valley

Route

Depart

Return

Price

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Wed 12/3

9:30 am-4:38 pm

1 stop6h 08m

Allentown-Bethlehem

Wed 12/10

5:23 pm-9:57 pm

1 stop5h 34m

$249

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Wed 2/18

6:00 am-12:07 pm

1 stop5h 07m

Allentown-Bethlehem

Sat 2/21

5:58 pm-11:38 pm

1 stop6h 40m

$249

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Fri 11/28

6:30 am-11:48 am

1 stop4h 18m

Allentown-Bethlehem

Tue 12/2

5:22 pm-10:45 pm

1 stop6h 23m

$349

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Wed 2/18

6:00 am-11:25 pm

2 stops16h 25m

Allentown-Bethlehem

Sat 2/21

12:01 pm-6:10 pm

1 stop7h 09m

$438

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Wed 12/3

6:30 am-11:52 am

1 stop4h 22m

Allentown-Bethlehem

Wed 12/10

5:22 pm-10:04 am

2 stops17h 42m

$567

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Sun 12/28

5:00 am-11:20 am

1 stop5h 20m

$267

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Sun 12/21

5:13 pm-10:46 pm

1 stop4h 33m

$267

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Fri 12/26

5:00 am-11:20 am

1 stop5h 20m

$282

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Tue 12/2

9:30 am-5:14 pm

1 stop6h 44m

$296

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Thu 11/20

6:00 am-12:16 pm

1 stop5h 16m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 16 results
1
2

Best time to book a flight from St. Louis to Lehigh Valley

Have a flexible travel schedule? Discover the best time to fly to Lehigh Valley 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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Lehigh Valley

What is the cheapest month to book a flight from St. Louis to Lehigh Valley?

Currently, May is the cheapest month in which you can book a flight from St. Louis to Lehigh Valley (average of $210). Flying from St. Louis to Lehigh Valley in December is currently the most expensive (average of $416). 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.

Reviews of airlines servicing Lehigh Valley

Get insights into the airlines that provide service to Lehigh Valley. 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 Lehigh Valley. Reviews last updated November 14, 2025.
Get a feel of what it's like to fly with Delta and American Airlines from St. Louis to Lehigh Valley by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,007 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,007 reviews
Delta
7.9
Good
8,007 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,051 reviews
Delta
7.9
Good
8,007 reviews

Overall

7.9

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Lehigh Valley. 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 Lehigh Valley?

    Lambert-St Louis (STL), located 12.7 mi from the city center, is the airport you fly out of when you book flights from St. Louis to Lehigh Valley.

  • How long is the flight from St. Louis to Lehigh Valley?

    Airlines like Delta fly from St. Louis to Lehigh Valley in about 6h 08m. The time it takes to get you to your destination can typically vary by up to . The distance between St. Louis and Lehigh Valley is about 803 mi.

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

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

  • How can I find direct flights from St. Louis to Lehigh Valley?

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

  • Can I find deals for business class flights from St. Louis to Lehigh Valley?

    Yes. Cheapflights offers flight deals from St. Louis to Lehigh Valley 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 Lehigh Valley?

    Currently, May is the cheapest month in which you can book a flight from St. Louis to Lehigh Valley (average of $210). Flying from St. Louis to Lehigh Valley in December is currently the most expensive (average of $416). 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

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Alternative routes for St. Louis to Lehigh Valley

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from St. Louis to Lehigh Valley

Discover the top 2 airlines that operate flights from St. Louis to Lehigh Valley. 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 November 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$303FlexibilityNo cancel feeOn-time71%
DeltaCheapest$303Average$478FlexibilityNo cancel feeOn-timeN/A

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