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Lehigh Valley

$224+ 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ABE
Aug 6 — Aug 131
Wed 8/6
Wed 8/13
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 August 1, 2025.

Round-trip from

$249
(American Airlines)

One-way from

$231
(Mytrip)

Popular in

February

Cheapest in

August

Average price

$303
From Lambert-St Louis to Lehigh Valley
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One-way flight from Lambert-St Louis to Lehigh Valley
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Highest demand for flights based on searches. 1% potential increase in price ($6 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 1, 2025.

This American Airlines deal was found by Cheapflights users on 7/31. 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.
Fri 10/318:30 amSTL - ABE
1 stop4h 43mAmerican Airlines
Tue 11/44:30 pmABE - STL
1 stop7h 37mAmerican Airlines
Deal found 7/31$224
This Delta deal was found by Cheapflights users on 7/30. 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 8/53:41 pmSTL - ABE
1 stop5h 49mDelta
Sat 8/166:14 pmABE - STL
1 stop4h 48mDelta
Deal found 7/30$299
This Mytrip deal was found by Cheapflights users on 7/29. 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 8/152:30 pmSTL - ABE
2 stops7h 23mMultiple Airlines
Mon 8/186:30 amABE - STL
3 stops13h 11mMultiple Airlines
Deal found 7/29$396
This United Airlines deal was found by Cheapflights users on 7/31. 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 8/276:35 amSTL - ABE
1 stop4h 23mUnited Airlines
Tue 9/25:28 pmABE - STL
3 stops24h 25mUnited Airlines
Deal found 7/31$735

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 August 1, 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 8/27

3:43 pm-9:44 pm

1 stop5h 01m

Allentown-Bethlehem

Tue 9/2

6:32 pm-11:05 pm

1 stop5h 33m

$249

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Tue 8/5

3:41 pm-10:30 pm

1 stop5h 49m

Allentown-Bethlehem

Sat 8/16

6:14 pm-10:02 pm

1 stop4h 48m

$299

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Fri 8/15

2:30 pm-10:53 pm

2 stops7h 23m

Allentown-Bethlehem

Mon 8/18

6:30 am-6:41 pm

3 stops13h 11m

$396

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Wed 8/27

6:35 am-11:58 am

1 stop4h 23m

Allentown-Bethlehem

Tue 9/2

5:28 pm-4:53 pm

3 stops24h 25m

$735

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Sat 8/9

3:34 pm-7:27 pm

2 stops26h 53m

$231

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Fri 9/26

2:11 pm-9:50 pm

1 stop6h 39m

$239

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Fri 9/26

1:40 pm-9:54 pm

2 stops31h 14m

$450

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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, February is the cheapest month in which you can book a flight from St. Louis to Lehigh Valley (average of $289). Flying from St. Louis to Lehigh Valley in December is currently the most expensive (average of $395). 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 August 1, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, 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
8.0
Very good
7,981 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Food

7.3

Crew

8.5

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • 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, February is the cheapest month in which you can book a flight from St. Louis to Lehigh Valley (average of $289). Flying from St. Louis to Lehigh Valley in December is currently the most expensive (average of $395). 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 3 airlines flying from St. Louis to Lehigh Valley

Discover the top 3 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 August 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$223Average$508FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$233Average$343FlexibilityNo cancel feeOn-time71%
DeltaCheapest$303Average$477FlexibilityNo cancel feeOn-timeN/A

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