$71+ Cheap flights from Missouri 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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — ILG
Mar 6 — Mar 131
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Missouri 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 Missouri to Delaware
Cheapest
Best
Last-minute
One-way
Cheapest flights from Missouri to DelawareExplore the most affordable flight options available from Missouri to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.
Explore the most affordable flight options available from Missouri to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/243:49 pm
STL
- PHL
1 stop21h 51m
Frontier
Sun 3/15:30 am
PHL
- STL
1 stop26h 21m
Frontier
Deal found 2/2![Frontier logo]()
$142
This Frontier deal was found by Cheapflights users on 2/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/219:41 am
STL
- PHL
1 stop11h 08m
Frontier
Wed 2/253:45 pm
PHL
- STL
1 stop7h 42m
Frontier
Deal found 2/1![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:49 pm
STL
- PHL
1 stop19h 33m
Frontier
Fri 3/65:05 am
PHL
- STL
1 stop7h 44m
Frontier
Deal found 2/3![Frontier logo]()
$147
This Flightnetwork deal was found by Cheapflights users on 2/3. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:49 pm
STL
- PHL
1 stop19h 33m
Frontier
Tue 3/105:55 pm
PHL
- STL
1 stop6h 24m
Frontier
Deal found 2/3![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/92:09 pm
STL
- PHL
1 stop9h 43m
Frontier
Wed 3/185:05 am
PHL
- STL
1 stop6h 32m
Frontier
Deal found 2/2![Frontier logo]()
$158
This Priceline deal was found by Cheapflights users on 2/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:12 pm
STL
- PHL
1 stop8h 22m
Frontier
Tue 5/195:29 pm
PHL
- STL
1 stop6h 50m
Frontier
Deal found 2/3![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2311:26 am
MCI
- PHL
1 stop21h 27m
Multiple Airlines
Wed 2/257:59 pm
PHL
- MCI
1 stop15h 31m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/104:51 pm
STL
- PHL
1 stop18h 35m
Multiple Airlines
Wed 3/117:46 pm
PHL
- STL
1 stop12h 31m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$169
This Expedia deal was found by Cheapflights users on 2/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:26 am
MCI
- PHL
1 stop11h 24m
Multiple Airlines
Mon 3/99:17 am
PHL
- MCI
1 stop8h 06m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/104:51 pm
STL
- PHL
1 stop18h 35m
Frontier
Mon 3/237:10 pm
PHL
- STL
1 stop16h 22m
Frontier
Deal found 2/2![Frontier logo]()
$171
This Expedia deal was found by Cheapflights users on 2/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:26 am
MCI
- PHL
1 stop11h 24m
Multiple Airlines
Mon 3/99:17 am
PHL
- MCI
1 stop8h 06m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/65:08 pm
MCI
- PHL
1 stop16h 51m
Multiple Airlines
Sun 3/85:08 pm
PHL
- MCI
1 stop18h 22m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$175
Best flights from Missouri to DelawareDiscover carefully curated flight deals from Missouri to Delaware that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 4, 2026.
Discover carefully curated flight deals from Missouri to Delaware that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 4, 2026.
This Expedia deal was found by Cheapflights users on 2/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/134:54 pm
STL
- PHL
1 stop7h 31m
Frontier
Wed 4/158:25 pm
PHL
- STL
1 stop23h 47m
Frontier
Deal found 2/3![Frontier logo]()
$160
This Mytrip deal was found by Cheapflights users on 2/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2311:26 am
MCI
- PHL
3 stops28h 00m
Spirit Airlines
Wed 2/255:26 pm
PHL
- MCI
1 stop18h 04m
Spirit Airlines
Deal found 2/3![Spirit Airlines logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/44:24 pm
MCI
- PHL
1 stop18h 17m
Multiple Airlines
Fri 3/65:05 am
PHL
- MCI
1 stop12h 18m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$200
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Tue 3/33:10 pm
COU
- PHL
1 stop4h 59m
United Airlines
Tue 3/109:55 am
PHL
- COU
2 stops11h 25m
United Airlines
Deal found 2/1![United Airlines logo]()
$274
This Delta deal was found by Cheapflights users on 2/1. 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 5/86:51 pm
SGF
- PHL
1 stop5h 08m
Delta
Sun 5/105:35 am
PHL
- SGF
1 stop6h 51m
Delta
Deal found 2/1![Delta logo]()
$279
This Southwest deal was found by Cheapflights users on 2/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:50 pm
STL
- PHL
Nonstop2h 10m
Southwest
Wed 5/136:20 am
PHL
- STL
Nonstop2h 25m
Southwest
Deal found 2/3![Southwest logo]()
$317
This Frontier deal was found by Cheapflights users on 2/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/88:16 pm
STL
- PHL
1 stop8h 15m
Frontier
Wed 4/155:29 pm
PHL
- STL
1 stop6h 50m
Frontier
Deal found 2/2![Frontier logo]()
$160
This CheapOair deal was found by Cheapflights users on 2/2. 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.
Fri 2/2711:26 am
MCI
- PHL
1 stop11h 24m
Spirit Airlines
Sun 3/15:26 pm
PHL
- MCI
1 stop18h 04m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$225
This American Airlines deal was found by Cheapflights users on 2/1. 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 5/145:19 am
SGF
- PHL
1 stop5h 20m
American Airlines
Tue 5/195:00 am
PHL
- SGF
1 stop6h 24m
American Airlines
Deal found 2/1![American Airlines logo]()
$459
This Expedia deal was found by Cheapflights users on 2/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/142:51 pm
STL
- PHL
1 stop24h 46m
Frontier
Sun 2/2210:59 pm
PHL
- STL
1 stop26h 00m
Frontier
Deal found 2/3![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/112:24 pm
MCI
- PHL
1 stop10h 32m
Multiple Airlines
Sun 4/58:25 pm
PHL
- MCI
1 stop24h 33m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/44:39 pm
MCI
- PHL
2 stops16h 48m
Frontier
Fri 3/65:05 am
PHL
- MCI
1 stop12h 18m
Frontier
Deal found 2/3![Frontier logo]()
$216
This Cheapflightsfares deal was found by Cheapflights users on 2/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2812:24 pm
MCI
- PHL
1 stop10h 32m
Spirit Airlines
Sat 4/115:21 pm
PHL
- MCI
1 stop7h 32m
Spirit Airlines
Deal found 2/3![Spirit Airlines logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:13 pm
STL
- PHL
1 stop10h 57m
Multiple Airlines
Tue 5/195:45 am
PHL
- STL
2 stops18h 34m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$254
This United Airlines deal was found by Cheapflights users on 2/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/188:00 am
COU
- PHL
1 stop5h 19m
United Airlines
Sun 2/2210:06 am
PHL
- COU
1 stop5h 22m
United Airlines
Deal found 2/3![United Airlines logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2812:24 pm
MCI
- PHL
1 stop9h 36m
Multiple Airlines
Sat 4/119:43 pm
PHL
- MCI
2 stops42h 53m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$257
This Frontier deal was found by Cheapflights users on 2/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/219:41 am
STL
- PHL
1 stop11h 08m
Frontier
Wed 2/253:45 pm
PHL
- STL
1 stop7h 42m
Frontier
Deal found 2/3![Frontier logo]()
$244
This Southwest deal was found by Cheapflights users on 2/2. 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.
Sat 4/112:25 pm
STL
- PHL
1 stop6h 10m
Southwest
Mon 4/136:10 am
PHL
- STL
Nonstop2h 25m
Southwest
Deal found 2/2![Southwest logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 2/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1912:24 pm
MCI
- PHL
1 stop9h 35m
Multiple Airlines
Mon 3/237:10 pm
PHL
- MCI
2 stops41h 19m
Multiple Airlines
Deal found 2/4![Multiple Airlines logo]()
$260
This Delta deal was found by Cheapflights users on 2/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1512:04 pm
MCI
- PHL
1 stop5h 21m
Delta
Sat 7/185:30 am
PHL
- MCI
1 stop5h 37m
Delta
Deal found 2/3![Delta logo]()
$347
This United Airlines deal was found by Cheapflights users on 2/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:00 am
SGF
- PHL
1 stop5h 14m
United Airlines
Sat 5/91:20 pm
PHL
- SGF
1 stop5h 39m
United Airlines
Deal found 2/3![United Airlines logo]()
$318
This Frontier deal was found by Cheapflights users on 2/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/68:12 pm
STL
- PHL
1 stop8h 19m
Frontier
Mon 3/95:05 am
PHL
- STL
1 stop9h 14m
Frontier
Deal found 2/4![Frontier logo]()
$248
This Southwest deal was found by Cheapflights users on 2/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/231:35 pm
STL
- PHL
Nonstop2h 10m
Southwest
Wed 4/296:35 pm
PHL
- STL
Nonstop2h 25m
Southwest
Deal found 2/3![Southwest logo]()
$338
This Southwest deal was found by Cheapflights users on 2/2. 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.
Wed 4/11:10 pm
STL
- PHL
Nonstop2h 05m
Southwest
Sat 4/46:15 am
PHL
- STL
Nonstop2h 30m
Southwest
Deal found 2/2![Southwest logo]()
$338
This United Airlines deal was found by Cheapflights users on 2/1. 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 2/283:10 pm
COU
- PHL
1 stop4h 59m
United Airlines
Tue 3/35:00 pm
PHL
- COU
1 stop5h 33m
United Airlines
Deal found 2/1![United Airlines logo]()
$338
This Mytrip deal was found by Cheapflights users on 2/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1912:24 pm
MCI
- PHL
2 stops9h 28m
Spirit Airlines
Mon 3/236:08 pm
PHL
- MCI
3 stops30h 45m
Spirit Airlines
Deal found 2/4![Spirit Airlines logo]()
$348
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/252:41 pm
COU
- PHL
1 stop5h 28m
United Airlines
Sat 3/286:30 am
PHL
- COU
1 stop5h 03m
United Airlines
Deal found 2/2![United Airlines logo]()
$353
This American Airlines deal was found by Cheapflights users on 2/1. 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 3/271:34 pm
STL
- SBY
1 stop5h 39m
American Airlines
Sun 3/297:43 am
SBY
- STL
1 stop6h 01m
American Airlines
Deal found 2/1![American Airlines logo]()
$498
This CheapOair deal was found by Cheapflights users on 2/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/53:49 pm
STL
- PHL
1 stop26h 32m
Frontier
Sun 3/810:38 pm
PHL
- STL
1 stop9h 24m
Frontier
Deal found 2/4![Frontier logo]()
$330
This American Airlines deal was found by Cheapflights users on 2/2. 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 3/276:30 am
MCI
- SBY
1 stop5h 55m
American Airlines
Sun 3/297:43 am
SBY
- MCI
1 stop5h 36m
American Airlines
Deal found 2/2![American Airlines logo]()
$498
Last-minute flights from Missouri to DelawareDiscover last-minute flight deals from Missouri to Delaware. Data last updated February 4, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to Delaware. Data last updated February 4, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2011:00 am
MCI
- PHL
1 stop13h 01m
Frontier
Sun 2/225:30 am
PHL
- MCI
1 stop29h 23m
Frontier
Deal found 2/2![Frontier logo]()
$179
This Frontier deal was found by Cheapflights users on 2/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/219:41 am
STL
- PHL
1 stop11h 08m
Frontier
Wed 2/253:45 pm
PHL
- STL
1 stop7h 42m
Frontier
Deal found 2/1![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2311:26 am
MCI
- PHL
1 stop21h 27m
Multiple Airlines
Wed 2/257:59 pm
PHL
- MCI
1 stop15h 31m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/243:49 pm
STL
- PHL
1 stop21h 51m
Frontier
Sun 3/15:30 am
PHL
- STL
1 stop26h 21m
Frontier
Deal found 2/2![Frontier logo]()
$142
This Expedia deal was found by Cheapflights users on 2/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:26 am
MCI
- PHL
1 stop11h 24m
Multiple Airlines
Mon 3/99:17 am
PHL
- MCI
1 stop8h 06m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:49 pm
STL
- PHL
1 stop19h 33m
Frontier
Fri 3/65:05 am
PHL
- STL
1 stop7h 44m
Frontier
Deal found 2/3![Frontier logo]()
$147
This Flightnetwork deal was found by Cheapflights users on 2/3. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:49 pm
STL
- PHL
1 stop19h 33m
Frontier
Tue 3/105:55 pm
PHL
- STL
1 stop6h 24m
Frontier
Deal found 2/3![Frontier logo]()
$151
This Expedia deal was found by Cheapflights users on 2/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:26 am
MCI
- PHL
1 stop11h 24m
Multiple Airlines
Mon 3/99:17 am
PHL
- MCI
1 stop8h 06m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/65:08 pm
MCI
- PHL
1 stop16h 51m
Multiple Airlines
Sun 3/85:08 pm
PHL
- MCI
1 stop18h 22m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/92:09 pm
STL
- PHL
1 stop9h 43m
Frontier
Wed 3/185:05 am
PHL
- STL
1 stop6h 32m
Frontier
Deal found 2/2![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/104:51 pm
STL
- PHL
1 stop18h 35m
Multiple Airlines
Wed 3/117:46 pm
PHL
- STL
1 stop12h 31m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/104:51 pm
STL
- PHL
1 stop18h 35m
Frontier
Wed 3/185:05 am
PHL
- STL
1 stop6h 32m
Frontier
Deal found 2/2![Frontier logo]()
$171
One-way flights from Missouri to DelawareSearch for one-way flight options from Missouri to Delaware. Find affordable one-way fares based on user searches. Data last updated February 4, 2026.
Search for one-way flight options from Missouri to Delaware. Find affordable one-way fares based on user searches. Data last updated February 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/23:49 pm
STL
- PHL
1 stop19h 50m
Frontier
Deal found 2/2![Frontier logo]()
$71
This Super.com deal was found by Cheapflights users on 2/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/112:24 pm
MCI
- PHL
1 stop6h 33m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:49 pm
STL
- PHL
1 stop19h 33m
Frontier
Deal found 2/2![Frontier logo]()
$72
This Priceline deal was found by Cheapflights users on 2/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2310:55 am
MCI
- PHL
1 stop6h 16m
Frontier
Deal found 2/1![Frontier logo]()
$74
This Frontier deal was found by Cheapflights users on 2/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:12 pm
STL
- PHL
1 stop8h 22m
Frontier
Deal found 2/4![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2711:26 am
MCI
- PHL
1 stop22h 57m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/28:22 pm
STL
- PHL
2 stops19h 04m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:17 pm
STL
- PHL
1 stop20h 54m
Frontier
Deal found 2/2![Frontier logo]()
$85
This Frontier deal was found by Cheapflights users on 2/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/298:13 pm
STL
- PHL
1 stop10h 57m
Frontier
Deal found 2/3![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3112:24 pm
MCI
- PHL
1 stop9h 26m
Multiple Airlines
Deal found 2/2![Multiple Airlines logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:26 am
MCI
- PHL
1 stop26h 30m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3012:24 pm
MCI
- PHL
1 stop19h 15m
Spirit Airlines
Deal found 2/2![Spirit Airlines logo]()
$89
Find flight deals from Missouri to Delaware
Keep the following information in mind while searching for Missouri to Delaware flight deals. Data was last updated February 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $142 (Kiwi.com) |
One-way from | $71 (Kiwi.com) |
Popular in | November |
Cheapest in | August |
Average price | $443 |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri 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 February 4, 2026.
Use the filters below to find and compare flights from Missouri to Delaware that are best for you.
Fly from
Missouri
Fly to
Delaware
Route
Depart
Return
Price
St. LouisPhiladelphia
STL - PHL
STLPHL
Lambert-St Louis
Mon 4/13
4:54 pm-1:25 am
1 stop7h 31m
Philadelphia
Wed 4/15
8:25 pm-7:12 pm
1 stop23h 47m
$160
St. LouisPhiladelphia
STL - PHL
STLPHL
Lambert-St Louis
Wed 4/8
8:16 pm-5:31 am
1 stop8h 15m
Philadelphia
Wed 4/15
5:29 pm-11:19 pm
1 stop6h 50m
$160
Kansas CityPhiladelphia
MCI - PHL
MCIPHL
Kansas City
Mon 2/23
11:26 am-4:26 pm
3 stops28h 00m
Philadelphia
Wed 2/25
5:26 pm-10:30 am
1 stop18h 04m
$192
Kansas CityPhiladelphia
MCI - PHL
MCIPHL
Kansas City
Wed 3/4
4:24 pm-11:41 am
1 stop18h 17m
Philadelphia
Fri 3/6
5:05 am-4:23 pm
1 stop12h 18m
$200
St. LouisPhiladelphia
STL - PHL
STLPHL
Lambert-St Louis
Sat 2/14
2:51 pm-4:37 pm
1 stop24h 46m
Philadelphia
Sun 2/22
10:59 pm-11:59 pm
1 stop26h 00m
$216
Kansas CityPhiladelphia
MCI - PHL
MCIPHL
Kansas City
Wed 3/4
4:39 pm-10:27 am
2 stops16h 48m
Philadelphia
Fri 3/6
5:05 am-4:23 pm
1 stop12h 18m
$216
Kansas CityPhiladelphia
MCI - PHL
MCIPHL
Kansas City
Fri 2/27
11:26 am-11:50 pm
1 stop11h 24m
Philadelphia
Sun 3/1
5:26 pm-10:30 am
1 stop18h 04m
$225
Kansas CityPhiladelphia
MCI - PHL
MCIPHL
Kansas City
Wed 4/1
12:24 pm-11:56 pm
1 stop10h 32m
Philadelphia
Sun 4/5
8:25 pm-7:58 pm
1 stop24h 33m
$243
St. LouisPhiladelphia
STL - PHL
STLPHL
Lambert-St Louis
Sat 2/21
9:41 am-9:49 pm
1 stop11h 08m
Philadelphia
Wed 2/25
3:45 pm-10:27 pm
1 stop7h 42m
$244
St. LouisPhiladelphia
STL - PHL
STLPHL
Lambert-St Louis
Fri 3/6
8:12 pm-5:31 am
1 stop8h 19m
Philadelphia
Mon 3/9
5:05 am-1:19 pm
1 stop9h 14m
$248
Showing 1-10 of 56 results
Best time to book a flight from Missouri to Delaware
Have a flexible travel schedule? Discover the best time to fly to Delaware from Missouri with our price prediction graph.
STL-PHL
MCI-PHL
SGF-PHL
COU-PHL
STL-SBY
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 Missouri to Delaware
USMO-USDE
STL-PHL
MCI-PHL
SGF-PHL
COU-PHL
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Missouri to Delaware. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Return Flight Options
Top destinations