$61+ Cheap flights from St. Louis (STL) to Delaware
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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from St. Louis to Delaware 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 Delaware
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Delaware (USDE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 23, 2025.
Round-trip from | $120 (CheapOair) |
|---|---|
One-way from | $61 (Frontier) |
Find flight deals from St. Louis to Delaware
Cheapest flights from St. Louis to DelawareExplore the most affordable flight options available from St. Louis to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 23, 2025.
Explore the most affordable flight options available from St. Louis to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 23, 2025.
This CheapOair deal was found by Cheapflights users on 1/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This CheapOair deal was found by Cheapflights users on 1/22. 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 CheapOair 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 1/23. 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 Mytrip 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 1/22. 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 Southwest deal was found by Cheapflights users on 1/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United deal was found by Cheapflights users on 1/22. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 1/21. 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 1/22. 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.
Find flights from St. Louis to Delaware within your budget
Customize your flight search to find flights from St. Louis to Delaware 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 January 23, 2025.
Fly from
Fly to
Route
Depart
Return
Price
St. LouisPhiladelphia
STL - PHL
STLPHL
Lambert-St Louis
Tue 2/25
5:20 pm-7:30 am
1 stop13h 10m
Philadelphia
Mon 3/3
5:30 am-11:43 pm
1 stop19h 13m
St. LouisPhiladelphia
STL - PHL
STLPHL
Lambert-St Louis
Thu 2/20
4:00 pm-9:59 am
1 stop16h 59m
Philadelphia
Thu 2/27
10:59 pm-11:43 pm
1 stop25h 44m
St. LouisPhiladelphia
STL - PHL
STLPHL
Lambert-St Louis
Thu 2/27
4:00 pm-9:59 am
1 stop16h 59m
Philadelphia
Mon 3/3
9:35 pm-2:42 pm
2 stops18h 07m
St. LouisPhiladelphia
STL - PHL
STLPHL
Lambert-St Louis
Thu 2/20
6:00 am-9:10 am
Nonstop2h 10m
Philadelphia
Thu 2/27
1:40 pm-10:03 pm
1 stop9h 23m
St. LouisPhiladelphia
STL - PHL
STLPHL
Lambert-St Louis
Sat 2/15
8:10 am-11:15 am
Nonstop2h 05m
Philadelphia
Tue 2/18
7:20 am-9:05 am
Nonstop2h 45m
St. LouisPhiladelphia
STL - PHL
STLPHL
Lambert-St Louis
Wed 2/19
8:25 am-2:03 pm
1 stop4h 38m
Philadelphia
Thu 2/20
6:00 am-12:12 pm
2 stops7h 12m
St. LouisPhiladelphia
STL - PHL
STLPHL
Lambert-St Louis
Wed 6/25
9:00 am-2:42 pm
1 stop4h 42m
Philadelphia
Sun 6/29
9:42 am-1:16 pm
1 stop4h 34m
St. LouisSalisbury
STL - SBY
STLSBY
Lambert-St Louis
Fri 5/16
4:46 pm-11:59 pm
1 stop6h 13m
Salisbury-Ocean City
Mon 5/19
8:05 pm-11:11 pm
1 stop4h 06m
St. LouisPhiladelphia
STL - PHL
STLPHL
Lambert-St Louis
Tue 4/22
5:52 pm-7:32 am
1 stop12h 40m
St. LouisPhiladelphia
STL - PHL
STLPHL
Lambert-St Louis
Thu 2/27
4:00 pm-9:59 am
1 stop16h 59m
Best time to book a flight from St. Louis to Delaware
Have a flexible travel schedule? Discover the best time to fly to Delaware from St. Louis with our price prediction graph.
Travel insights for flights from St. Louis to Delaware
Get recent, data-driven insights about flights from St. Louis to Delaware including ideal travel times, pricing trends, and more.
Rainfall in Delaware by month
Plan your trip to Delaware by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Delaware ranges from 2.9 - 4.3 inches per month. July is typically the wettest month, when rainfall can reach 4.3 in. February is typically the driest time to visit Delaware when rainfall is around 2.9 in.
Temperature in Delaware by month
Plan your trip to Delaware by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Delaware, 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 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).
Reviews of airlines servicing Delaware
Get insights into the airlines that provide service to Delaware. 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 Delaware. Reviews last updated January 23, 2025.
Read through reviews of airlines operating flights from St. Louis to Delaware, such as United Airlines, Delta and American Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Comfort
Boarding
Entertainment
Overall
Food
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Crew
Comfort
Boarding
Entertainment
Overall
Food
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Crew
Comfort
Boarding
Entertainment
Overall
Food
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Crew
Comfort
Boarding
Entertainment
Overall
Food
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Crew
Comfort
Boarding
Entertainment
Overall
Food
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Crew
Comfort
Boarding
Entertainment
Overall
Food
Reviews
We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.