$167+ Cheap flights from San Francisco (SFO) 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ILG
May 1 — May 81
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco 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
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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 San Francisco to Delaware
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Cheapest flights from San Francisco to DelawareExplore the most affordable flight options available from San Francisco to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2026.
Explore the most affordable flight options available from San Francisco to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2026.
This Frontier deal was found by Cheapflights users on 3/28. 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 4/116:43 pm
SFO
- PHL
1 stop7h 47m
Frontier
Sun 4/199:17 am
PHL
- SFO
1 stop11h 17m
Frontier
Deal found 3/28![Frontier logo]()
$300
This CheapOair deal was found by Cheapflights users on 3/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/108:51 pm
SFO
- PHL
1 stop14h 45m
Frontier
Mon 7/1312:54 pm
PHL
- SFO
1 stop24h 35m
Frontier
Deal found 3/30![Frontier logo]()
$301
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:52 pm
SFO
- PHL
1 stop13h 45m
Frontier
Thu 5/146:43 pm
PHL
- SFO
2 stops18h 58m
Frontier
Deal found 3/29![Frontier logo]()
$303
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/36:00 am
SFO
- PHL
2 stops15h 26m
Frontier
Mon 5/118:35 pm
PHL
- SFO
1 stop18h 07m
Frontier
Deal found 3/29![Frontier logo]()
$304
This Frontier deal was found by Cheapflights users on 3/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/710:03 pm
SFO
- PHL
1 stop9h 50m
Frontier
Mon 4/279:17 am
PHL
- SFO
1 stop11h 17m
Frontier
Deal found 3/29![Frontier logo]()
$305
This Frontier deal was found by Cheapflights users on 3/28. 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 4/1010:23 pm
SFO
- PHL
1 stop9h 20m
Frontier
Thu 4/165:05 am
PHL
- SFO
1 stop15h 29m
Frontier
Deal found 3/28![Frontier logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 5/111:16 pm
SFO
- PHL
2 stops19h 58m
Frontier
Mon 5/48:41 pm
PHL
- SFO
1 stop18h 01m
Frontier
Deal found 3/28![Frontier logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:00 am
SFO
- PHL
2 stops21h 50m
Frontier
Sat 4/188:41 pm
PHL
- SFO
1 stop15h 32m
Frontier
Deal found 3/29![Frontier logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 3/28. 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.
Sun 5/105:25 pm
SFO
- PHL
2 stops33h 12m
Frontier
Sat 5/161:11 pm
PHL
- SFO
1 stop12h 53m
Frontier
Deal found 3/28![Frontier logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 5/111:16 pm
SFO
- PHL
2 stops19h 58m
Frontier
Tue 5/126:10 am
PHL
- SFO
1 stop19h 54m
Frontier
Deal found 3/28![Frontier logo]()
$310
This Frontier deal was found by Cheapflights users on 3/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/22:47 pm
SFO
- PHL
1 stop11h 38m
Frontier
Fri 5/156:30 am
PHL
- SFO
1 stop16h 04m
Frontier
Deal found 3/31![Frontier logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 5/27:40 pm
SFO
- PHL
2 stops13h 00m
Frontier
Tue 5/58:35 pm
PHL
- SFO
1 stop18h 07m
Frontier
Deal found 3/28![Frontier logo]()
$312
Best flights from San Francisco to DelawareDiscover carefully curated flight deals from San Francisco to Delaware that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 1, 2026.
Discover carefully curated flight deals from San Francisco to Delaware that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 1, 2026.
This United Airlines deal was found by Cheapflights users on 3/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/711:20 pm
SFO
- PHL
Nonstop5h 30m
United Airlines
Tue 7/216:00 am
PHL
- SFO
Nonstop5h 58m
United Airlines
Deal found 3/30![United Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 3/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/125:55 am
SFO
- PHL
2 stops9h 10m
Southwest
Tue 6/234:35 pm
PHL
- SFO
2 stops9h 40m
Southwest
Deal found 3/30![Southwest logo]()
$419
This American Airlines deal was found by Cheapflights users on 3/27. 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 7/308:15 am
SFO
- SBY
1 stop10h 48m
American Airlines
Mon 8/34:33 pm
SBY
- SFO
1 stop9h 15m
American Airlines
Deal found 3/27![American Airlines logo]()
$735
This United Airlines deal was found by Cheapflights users on 3/28. 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 6/1011:20 pm
SFO
- PHL
Nonstop5h 30m
United Airlines
Wed 6/176:00 am
PHL
- SFO
Nonstop5h 58m
United Airlines
Deal found 3/28![United Airlines logo]()
$383
This Southwest deal was found by Cheapflights users on 4/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3111:40 pm
SFO
- PHL
1 stop8h 20m
Southwest
Mon 8/105:25 am
PHL
- SFO
2 stops9h 30m
Southwest
Deal found 4/1![Southwest logo]()
$452
This Southwest deal was found by Cheapflights users on 3/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:25 am
SFO
- PHL
2 stops10h 00m
Southwest
Sun 4/265:20 am
PHL
- SFO
1 stop8h 00m
Southwest
Deal found 3/30![Southwest logo]()
$454
This United Airlines deal was found by Cheapflights users on 3/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1211:20 pm
SFO
- PHL
Nonstop5h 30m
United Airlines
Sat 6/276:00 am
PHL
- SFO
Nonstop5h 58m
United Airlines
Deal found 3/29![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 3/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/25:30 pm
SFO
- PHL
1 stop9h 01m
United Airlines
Tue 7/146:00 am
PHL
- SFO
Nonstop5h 58m
United Airlines
Deal found 3/30![United Airlines logo]()
$465
This Southwest deal was found by Cheapflights users on 4/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:05 am
SFO
- PHL
2 stops10h 20m
Southwest
Sat 5/2312:25 pm
PHL
- SFO
2 stops11h 55m
Southwest
Deal found 4/1![Southwest logo]()
$468
This Southwest deal was found by Cheapflights users on 4/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1511:00 am
SFO
- PHL
2 stops10h 40m
Southwest
Wed 6/249:35 am
PHL
- SFO
2 stops15h 40m
Southwest
Deal found 4/1![Southwest logo]()
$474
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Fri 4/2411:59 pm
SFO
- PHL
2 stops11h 17m
United Airlines
Mon 4/276:55 pm
PHL
- SFO
1 stop9h 40m
United Airlines
Deal found 3/31![United Airlines logo]()
$484
This Southwest deal was found by Cheapflights users on 4/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:05 am
SFO
- PHL
2 stops10h 20m
Southwest
Sat 5/305:35 am
PHL
- SFO
2 stops10h 00m
Southwest
Deal found 4/1![Southwest logo]()
$484
This United Airlines deal was found by Cheapflights users on 3/28. 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.
Sun 4/1212:45 am
SFO
- PHL
1 stop8h 32m
United Airlines
Mon 4/206:12 am
PHL
- SFO
Nonstop6h 18m
United Airlines
Deal found 3/28![United Airlines logo]()
$509
This American Airlines deal was found by Cheapflights users on 3/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/137:00 am
SFO
- SBY
1 stop7h 59m
American Airlines
Wed 5/201:47 pm
SBY
- SFO
1 stop10h 41m
American Airlines
Deal found 3/29![American Airlines logo]()
$780
This American Airlines deal was found by Cheapflights users on 3/27. 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.
Mon 8/35:00 am
SFO
- SBY
1 stop8h 08m
American Airlines
Fri 8/76:41 am
SBY
- SFO
1 stop7h 55m
American Airlines
Deal found 3/27![American Airlines logo]()
$820
This American Airlines deal was found by Cheapflights users on 3/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:00 am
SFO
- SBY
2 stops11h 30m
American Airlines
Fri 7/244:33 pm
SBY
- SFO
1 stop9h 15m
American Airlines
Deal found 3/29![American Airlines logo]()
$826
Last-minute flights from San Francisco to DelawareDiscover last-minute flight deals from San Francisco to Delaware. Data last updated April 1, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Delaware. Data last updated April 1, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 3/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/710:03 pm
SFO
- PHL
1 stop9h 50m
Frontier
Mon 4/279:17 am
PHL
- SFO
1 stop11h 17m
Frontier
Deal found 3/29![Frontier logo]()
$305
This Frontier deal was found by Cheapflights users on 3/28. 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 4/1010:23 pm
SFO
- PHL
1 stop9h 20m
Frontier
Thu 4/165:05 am
PHL
- SFO
1 stop15h 29m
Frontier
Deal found 3/28![Frontier logo]()
$306
This Frontier deal was found by Cheapflights users on 3/28. 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 4/116:43 pm
SFO
- PHL
1 stop7h 47m
Frontier
Sun 4/199:17 am
PHL
- SFO
1 stop11h 17m
Frontier
Deal found 3/28![Frontier logo]()
$300
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1310:03 pm
SFO
- PHL
2 stops15h 45m
Multiple Airlines
Thu 5/71:32 pm
PHL
- SFO
1 stop9h 02m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:00 am
SFO
- PHL
2 stops21h 50m
Frontier
Sat 4/188:41 pm
PHL
- SFO
1 stop15h 32m
Frontier
Deal found 3/29![Frontier logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 5/111:16 pm
SFO
- PHL
2 stops19h 58m
Frontier
Mon 5/48:41 pm
PHL
- SFO
1 stop18h 01m
Frontier
Deal found 3/28![Frontier logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 5/111:16 pm
SFO
- PHL
2 stops19h 58m
Frontier
Tue 5/126:10 am
PHL
- SFO
1 stop19h 54m
Frontier
Deal found 3/28![Frontier logo]()
$310
This Frontier deal was found by Cheapflights users on 3/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/22:47 pm
SFO
- PHL
1 stop11h 38m
Frontier
Fri 5/156:30 am
PHL
- SFO
1 stop16h 04m
Frontier
Deal found 3/31![Frontier logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 5/27:40 pm
SFO
- PHL
2 stops13h 00m
Frontier
Tue 5/58:35 pm
PHL
- SFO
1 stop18h 07m
Frontier
Deal found 3/28![Frontier logo]()
$312
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/36:00 am
SFO
- PHL
2 stops15h 26m
Frontier
Mon 5/118:35 pm
PHL
- SFO
1 stop18h 07m
Frontier
Deal found 3/29![Frontier logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:52 pm
SFO
- PHL
1 stop13h 45m
Frontier
Thu 5/146:43 pm
PHL
- SFO
2 stops18h 58m
Frontier
Deal found 3/29![Frontier logo]()
$303
This Kiwi.com deal was found by Cheapflights users on 3/28. 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.
Sun 5/105:25 pm
SFO
- PHL
2 stops33h 12m
Frontier
Sat 5/161:11 pm
PHL
- SFO
1 stop12h 53m
Frontier
Deal found 3/28![Frontier logo]()
$309
One-way flights from San Francisco to DelawareSearch for one-way flight options from San Francisco to Delaware. Find affordable one-way fares based on user searches. Data last updated April 1, 2026.
Search for one-way flight options from San Francisco to Delaware. Find affordable one-way fares based on user searches. Data last updated April 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2710:38 pm
SFO
- PHL
3 stops21h 59m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2912:52 pm
SFO
- PHL
2 stops33h 14m
Frontier
Deal found 3/31![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:40 am
SFO
- PHL
3 stops35h 57m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/152:47 pm
SFO
- PHL
3 stops28h 10m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:26 pm
SFO
- PHL
2 stops18h 23m
Frontier
Deal found 3/31![Frontier logo]()
$171
This Trip.com deal was found by Cheapflights users on 3/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/49:35 pm
SFO
- PHL
1 stop29h 03m
Frontier
Deal found 3/28![Frontier logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2010:38 pm
SFO
- PHL
3 stops32h 11m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 3/28. 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 4/116:43 pm
SFO
- PHL
3 stops58h 56m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2510:38 pm
SFO
- PHL
3 stops30h 53m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:25 pm
SFO
- PHL
3 stops19h 17m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$176
This Super.com deal was found by Cheapflights users on 4/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1010:23 pm
SFO
- PHL
1 stop9h 20m
Frontier
Deal found 4/1![Frontier logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 4/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1310:50 pm
SFO
- PHL
2 stops57h 04m
Multiple Airlines
Deal found 4/1![Multiple Airlines logo]()
$178
Find flight deals from San Francisco to Delaware
Keep the following information in mind while searching for San Francisco to Delaware flight deals. Data was last updated April 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $300 (Frontier) |
One-way from | $167 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $389 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco 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 April 1, 2026.
Use the filters below to find and compare flights from San Francisco to Delaware that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
San FranciscoPhiladelphia
SFO - PHL
SFOPHL
San Francisco
Tue 7/7
11:20 pm-7:50 am
Nonstop5h 30m
Philadelphia
Tue 7/21
6:00 am-8:58 am
Nonstop5h 58m
$349
San FranciscoPhiladelphia
SFO - PHL
SFOPHL
San Francisco
Wed 6/10
11:20 pm-7:50 am
Nonstop5h 30m
Philadelphia
Wed 6/17
6:00 am-8:58 am
Nonstop5h 58m
$383
San FranciscoPhiladelphia
SFO - PHL
SFOPHL
San Francisco
Tue 5/12
5:55 am-6:05 pm
2 stops9h 10m
Philadelphia
Tue 6/23
4:35 pm-11:15 pm
2 stops9h 40m
$419
San FranciscoPhiladelphia
SFO - PHL
SFOPHL
San Francisco
Fri 7/31
11:40 pm-11:00 am
1 stop8h 20m
Philadelphia
Mon 8/10
5:25 am-11:55 am
2 stops9h 30m
$452
San FranciscoPhiladelphia
SFO - PHL
SFOPHL
San Francisco
Mon 4/20
5:25 am-6:25 pm
2 stops10h 00m
Philadelphia
Sun 4/26
5:20 am-10:20 am
1 stop8h 00m
$454
San FranciscoPhiladelphia
SFO - PHL
SFOPHL
San Francisco
Fri 6/12
11:20 pm-7:50 am
Nonstop5h 30m
Philadelphia
Sat 6/27
6:00 am-8:58 am
Nonstop5h 58m
$459
San FranciscoPhiladelphia
SFO - PHL
SFOPHL
San Francisco
Thu 7/2
5:30 pm-5:31 am
1 stop9h 01m
Philadelphia
Tue 7/14
6:00 am-8:58 am
Nonstop5h 58m
$465
San FranciscoPhiladelphia
SFO - PHL
SFOPHL
San Francisco
Fri 5/22
5:05 am-6:25 pm
2 stops10h 20m
Philadelphia
Sat 5/23
12:25 pm-9:20 pm
2 stops11h 55m
$468
San FranciscoPhiladelphia
SFO - PHL
SFOPHL
San Francisco
Mon 6/15
11:00 am-12:40 am
2 stops10h 40m
Philadelphia
Wed 6/24
9:35 am-10:15 pm
2 stops15h 40m
$474
San FranciscoPhiladelphia
SFO - PHL
SFOPHL
San Francisco
Fri 4/24
11:59 pm-2:16 pm
2 stops11h 17m
Philadelphia
Mon 4/27
6:55 pm-1:35 am
1 stop9h 40m
$484
Showing 1-10 of 30 resultsSorted by cheapest first
Best time to book a flight from San Francisco to Delaware
Have a flexible travel schedule? Discover the best time to fly to Delaware from San Francisco with our price prediction graph.
SFO-PHL
SFO-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 San Francisco to Delaware
SFO-USDE
SFO-PHL
SFO-SBY
No data available for this route at this time. Please check back soon.
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