$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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from St. Louis to Lehigh Valley with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 April 25, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $249 (Delta) |
Popular in | February |
Cheapest in | August |
Average price | $311 |
Find flight deals from St. Louis to Lehigh Valley
Cheapest flights from St. Louis to Lehigh ValleyExplore 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 April 25, 2025.
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 April 25, 2025.
This Delta deal was found by Cheapflights users on 4/25. 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.
This American Airlines deal was found by Cheapflights users on 4/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 4/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight 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 April 25, 2025.
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
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Tue 5/20
10:05 am-5:06 pm
1 stop6h 01m
Allentown-Bethlehem
Tue 5/27
5:50 pm-11:38 pm
1 stop6h 48m
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Thu 6/5
4:37 pm-12:20 am
1 stop6h 43m
Allentown-Bethlehem
Sun 6/15
8:02 pm-11:59 pm
1 stop4h 57m
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Thu 5/8
10:10 am-12:13 pm
2 stops25h 03m
Allentown-Bethlehem
Thu 5/15
1:53 pm-11:37 am
2 stops22h 44m
St. LouisAllentown
STL - ABE
STLABE
Lambert-St Louis
Thu 5/1
7:10 am-12:27 pm
1 stop4h 17m
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.
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 $292). 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.
Rainfall in Lehigh Valley by month
Plan your trip to Lehigh Valley by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Lehigh Valley ranges from 2.7 - 5.0 inches per month. July is typically the wettest month, when rainfall can reach 5.0 in. February is typically the driest time to visit Lehigh Valley when rainfall is around 2.7 in.
Temperature in Lehigh Valley by month
Plan your trip to Lehigh Valley by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Lehigh Valley, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).
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 April 25, 2025.
Crew
Entertainment
Boarding
Food
Comfort
Overall
Reviews
Aaron,Oct 2024
TUS - LAX
Crew
Entertainment
Boarding
Food
Comfort
Overall
Reviews
Aaron,Oct 2024
TUS - LAX
Crew
Entertainment
Boarding
Food
Comfort
Overall
Reviews
Aaron,Oct 2024
TUS - LAX
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.
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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.
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 April 25, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$223 | Average$488 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$224 | Average$318 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$248 | Average$477 | FlexibilityNo cancel fee | On-timeN/A |