Lehigh Valley

$155+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ABE
Jul 9 — Jul 161
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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 June 9, 2026.

This Delta deal was found by Cheapflights users on 6/5. 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.
Sat 7/48:00 am
STL
-
ABE
1 stop4h 25m
Delta
Fri 7/106:05 pm
ABE
-
STL
1 stop5h 10m
Delta
Deal found 6/5$313
This Delta deal was found by Cheapflights users on 6/7. 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 7/76:00 am
STL
-
ABE
1 stop5h 22m
Delta
Tue 7/146:05 pm
ABE
-
STL
1 stop6h 48m
Delta
Deal found 6/7$319
This Delta deal was found by Cheapflights users on 6/8. 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 7/153:58 pm
STL
-
ABE
1 stop6h 10m
Delta
Mon 7/206:05 pm
ABE
-
STL
1 stop6h 48m
Delta
Deal found 6/8$333
This Delta deal was found by Cheapflights users on 6/4. 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 6/199:21 am
STL
-
ABE
1 stop7h 09m
Delta
Tue 6/236:05 pm
ABE
-
STL
1 stop5h 13m
Delta
Deal found 6/4$339
This American Airlines deal was found by Cheapflights users on 6/3. 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.
Thu 10/111:01 am
STL
-
ABE
1 stop4h 39m
American Airlines
Mon 10/55:18 pm
ABE
-
STL
1 stop7h 07m
American Airlines
Deal found 6/3$345
This American Airlines deal was found by Cheapflights users on 6/4. 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.
Wed 7/89:08 am
STL
-
ABE
1 stop6h 34m
American Airlines
Wed 7/155:12 pm
ABE
-
STL
1 stop8h 04m
American Airlines
Deal found 6/4$346
This Delta deal was found by Cheapflights users on 6/4. 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 10/213:42 pm
STL
-
ABE
1 stop6h 04m
Delta
Mon 10/265:40 pm
ABE
-
STL
1 stop6h 59m
Delta
Deal found 6/4$358
This Delta deal was found by Cheapflights users on 6/7. 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 7/89:24 am
STL
-
ABE
1 stop7h 01m
Delta
Wed 7/156:05 pm
ABE
-
STL
1 stop6h 48m
Delta
Deal found 6/7$364
This American Airlines deal was found by Cheapflights users on 6/5. 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.
Tue 7/219:08 am
STL
-
ABE
1 stop6h 31m
American Airlines
Thu 7/236:01 am
ABE
-
STL
1 stop7h 50m
American Airlines
Deal found 6/5$390
This Delta deal was found by Cheapflights users on 6/7. 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.
Sat 8/157:00 am
STL
-
ABE
1 stop4h 28m
Delta
Mon 8/176:09 pm
ABE
-
STL
1 stop6h 49m
Delta
Deal found 6/7$393

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 June 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$313
(Delta)

One-way from

$155
(American Airlines)

Popular in

March

Cheapest in

September

Average price

$464
Provider with most accurate pricing for Lambert-St Louis-Allentown-Bethlehem flight deals.
Provider most trusted by Cheapflights users for Lambert-St Louis-Allentown-Bethlehem flights.
From Lambert-St Louis to Lehigh Valley
One-way flight from Lambert-St Louis to Lehigh Valley
Highest demand for flights based on searches. 20% potential increase in price ($100 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
Average for round-trip flights in June 2026

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 June 9, 2026.
Use the filters below to find and compare flights from St. Louis to Lehigh Valley that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Sat 7/4

8:00 am-1:25 pm

1 stop4h 25m

Allentown-Bethlehem

Fri 7/10

6:05 pm-10:15 pm

1 stop5h 10m

$313

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Tue 7/7

6:00 am-12:22 pm

1 stop5h 22m

Allentown-Bethlehem

Tue 7/14

6:05 pm-11:53 pm

1 stop6h 48m

$319

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Wed 7/15

3:58 pm-11:08 pm

1 stop6h 10m

Allentown-Bethlehem

Mon 7/20

6:05 pm-11:53 pm

1 stop6h 48m

$334

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Fri 6/19

9:21 am-5:30 pm

1 stop7h 09m

Allentown-Bethlehem

Tue 6/23

6:05 pm-10:18 pm

1 stop5h 13m

$339

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Wed 7/8

9:08 am-4:42 pm

1 stop6h 34m

Allentown-Bethlehem

Wed 7/15

5:12 pm-12:16 am

1 stop8h 04m

$346

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Wed 7/8

9:24 am-5:25 pm

1 stop7h 01m

Allentown-Bethlehem

Wed 7/15

6:05 pm-11:53 pm

1 stop6h 48m

$364

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Sat 8/15

7:00 am-12:28 pm

1 stop4h 28m

Allentown-Bethlehem

Mon 8/17

6:09 pm-11:58 pm

1 stop6h 49m

$393

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Mon 7/6

10:51 am-5:30 pm

1 stop5h 39m

Allentown-Bethlehem

Tue 7/7

6:05 pm-11:53 pm

1 stop6h 48m

$400

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Tue 7/21

6:00 am-12:22 pm

1 stop5h 22m

Allentown-Bethlehem

Fri 7/24

6:05 pm-10:15 pm

1 stop5h 10m

$400

St. LouisAllentown

STL - ABE

STLABE

Lambert-St Louis

Sat 7/25

3:39 pm-11:08 pm

1 stop6h 29m

Allentown-Bethlehem

Tue 7/28

6:05 pm-10:15 pm

1 stop5h 10m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/8

Showing 1-10 of 16 resultsSorted by cheapest first
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, January is the cheapest month in which you can book a flight from St. Louis to Lehigh Valley (average of $145). Flying from St. Louis to Lehigh Valley in March is currently the most expensive (average of $610). 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 June 9, 2026.
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.

Crew

8.5

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Crew

8.5

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Crew

8.5

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 American Airlines fly from St. Louis to Lehigh Valley in about 4h 25m. The time it takes to get you to your destination can typically vary by up to 2h 09m. 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, January is the cheapest month in which you can book a flight from St. Louis to Lehigh Valley (average of $145). Flying from St. Louis to Lehigh Valley in March is currently the most expensive (average of $610). 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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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 June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$248Average$308FlexibilityNo cancel feeOn-time71%
DeltaCheapest$274Average$378FlexibilityNo cancel feeOn-timeN/A

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