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Lehigh Valley

$159+ Cheap flights from St. Louis (STL) to Lehigh Valley

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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ABE
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
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Cheap 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 December 26, 2025.

This Delta deal was found by Cheapflights users on 12/24. 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 12/315:13 pmSTL - ABE
1 stop4h 33mDelta
Wed 1/75:59 pmABE - STL
1 stop6h 40mDelta
Deal found 12/24$316
This United Airlines deal was found by Cheapflights users on 12/24. 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 12/298:05 amSTL - ABE
1 stop4h 50mUnited Airlines
Wed 1/74:57 pmABE - STL
1 stop7h 01mUnited Airlines
Deal found 12/24$394
This Delta deal was found by Cheapflights users on 12/24. 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.
Thu 12/256:00 amSTL - ABE
1 stop6h 13mDelta
Sun 12/286:04 pmABE - STL
1 stop6h 38mDelta
Deal found 12/24$419
This United Airlines deal was found by Cheapflights users on 12/24. 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.
Thu 12/259:55 amSTL - ABE
1 stop5h 35mUnited Airlines
Sat 12/275:07 pmABE - STL
1 stop6h 36mUnited Airlines
Deal found 12/24$439
This Delta deal was found by Cheapflights users on 12/24. 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.
Mon 12/296:00 amSTL - ABE
1 stop5h 09mDelta
Fri 1/26:04 pmABE - STL
1 stop6h 38mDelta
Deal found 12/24$482
This United Airlines deal was found by Cheapflights users on 12/24. 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.
Thu 12/258:05 amSTL - ABE
1 stop7h 25mUnited Airlines
Tue 12/305:07 pmABE - STL
1 stop6h 36mUnited Airlines
Deal found 12/24$494
This Delta deal was found by Cheapflights users on 12/24. 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.
Fri 12/265:13 pmSTL - ABE
1 stop4h 33mDelta
Sun 12/286:04 pmABE - STL
1 stop6h 38mDelta
Deal found 12/24$499
This United Airlines deal was found by Cheapflights users on 12/23. 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 12/276:30 amSTL - ABE
1 stop6h 25mUnited Airlines
Tue 12/305:07 pmABE - STL
1 stop6h 36mUnited Airlines
Deal found 12/23$513
This Delta deal was found by Cheapflights users on 12/24. 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 12/245:13 pmSTL - ABE
1 stop4h 33mDelta
Sun 12/286:04 pmABE - STL
1 stop6h 38mDelta
Deal found 12/24$553
This United Airlines deal was found by Cheapflights users on 12/24. 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 12/276:30 amSTL - ABE
1 stop6h 25mUnited Airlines
Sun 12/282:30 pmABE - STL
1 stop8h 13mUnited Airlines
Deal found 12/24$563

Find 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 December 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$315
(Kiwi.com)

One-way from

$159
(Delta)

Popular in

November

Cheapest in

April

Average price

$357
Provider with most accurate pricing for Lambert-St Louis-New York (NYC) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-New York (NYC) flights.
Search Deals
From Lambert-St Louis to Lehigh Valley
Search Deals
One-way flight from Lambert-St Louis to Lehigh Valley
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 26, 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

Sun 1/25

6:00 am-12:05 pm

1 stop5h 05m

Allentown-Bethlehem

Sun 2/1

5:59 pm-11:37 pm

1 stop6h 38m

$303

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Sat 1/10

7:10 am-1:06 pm

1 stop4h 56m

Allentown-Bethlehem

Wed 1/14

5:59 pm-11:39 pm

1 stop6h 40m

$315

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Wed 1/28

9:57 am-4:22 pm

1 stop5h 25m

Allentown-Bethlehem

Sat 1/31

11:30 am-4:03 pm

1 stop5h 33m

$389

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Wed 4/1

12:04 pm-5:17 pm

1 stop4h 13m

Allentown-Bethlehem

Mon 4/6

5:59 pm-11:58 pm

1 stop6h 59m

$401

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Sun 2/1

6:00 am-11:59 am

1 stop4h 59m

Allentown-Bethlehem

Thu 2/5

5:59 pm-11:37 pm

1 stop6h 38m

$433

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Wed 4/1

3:30 pm-2:56 pm

1 stop22h 26m

Allentown-Bethlehem

Mon 4/6

6:28 pm-9:47 am

2 stops16h 19m

$474

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Thu 1/1

5:13 pm-10:46 pm

1 stop4h 33m

$159

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Wed 12/31

5:13 pm-10:46 pm

1 stop4h 33m

$159

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Mon 1/19

3:54 pm-10:26 pm

1 stop5h 32m

$202

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Sat 5/16

6:00 am-12:10 pm

1 stop5h 10m

$232

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

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 February is currently the most expensive (average of $478). 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 December 26, 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
8,013 reviews

Boarding

8.1

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Overall

7.9

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
8,013 reviews
Delta
7.9
Good
8,013 reviews

Boarding

8.1

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Overall

7.9

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
11,062 reviews
Delta
7.9
Good
8,013 reviews

Boarding

8.1

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Overall

7.9

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 and United Airlines fly from St. Louis to Lehigh Valley in about 5h 05m. The time it takes to get you to your destination can typically vary by up to 20m. The distance between St. Louis and Lehigh Valley is about 803 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 February is currently the most expensive (average of $478). 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 December 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$228Average$303FlexibilityNo cancel feeOn-time71%
DeltaCheapest$303Average$477FlexibilityNo cancel feeOn-timeN/A

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