$178+ Cheap flights from San Francisco to Allentown (SFO - ABE)
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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ABE
Aug 7 — Aug 141
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Allentown 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 Allentown
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Best
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Cheapest flights from San Francisco to AllentownExplore the most affordable flight options available from San Francisco to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 8, 2026.
Explore the most affordable flight options available from San Francisco to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 8/176:00 am
SFO
- ABE
1 stop14h 14m
Multiple Airlines
Mon 8/247:00 am
ABE
- SFO
2 stops55h 52m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$346
This Delta deal was found by Cheapflights users on 7/7. 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 8/196:00 am
SFO
- ABE
1 stop8h 23m
Delta
Tue 12/156:30 am
ABE
- SFO
1 stop8h 29m
Delta
Deal found 7/7![Delta logo]()
$369
This American Airlines deal was found by Cheapflights users on 7/5. 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.
Wed 8/1912:33 pm
SFO
- ABE
1 stop7h 52m
American Airlines
Wed 8/264:57 pm
ABE
- SFO
1 stop8h 43m
American Airlines
Deal found 7/5![American Airlines logo]()
$371
This American Airlines deal was found by Cheapflights users on 7/6. 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 8/135:05 am
SFO
- ABE
1 stop8h 22m
American Airlines
Wed 8/196:00 am
ABE
- SFO
1 stop8h 28m
American Airlines
Deal found 7/6![American Airlines logo]()
$372
This Delta deal was found by Cheapflights users on 7/7. 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 8/196:00 am
SFO
- ABE
1 stop8h 23m
Delta
Thu 12/175:40 pm
ABE
- SFO
1 stop9h 35m
Delta
Deal found 7/7![Delta logo]()
$393
This American Airlines deal was found by Cheapflights users on 7/4. 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.
Tue 8/1812:33 pm
SFO
- ABE
1 stop7h 52m
American Airlines
Tue 8/256:00 am
ABE
- SFO
1 stop8h 28m
American Airlines
Deal found 7/4![American Airlines logo]()
$397
This Delta deal was found by Cheapflights users on 7/7. 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 8/196:00 am
SFO
- ABE
1 stop8h 23m
Delta
Sun 12/201:00 pm
ABE
- SFO
1 stop9h 37m
Delta
Deal found 7/7![Delta logo]()
$424
This United Airlines deal was found by Cheapflights users on 7/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2010:35 pm
SFO
- ABE
1 stop8h 22m
United Airlines
Thu 8/275:36 pm
ABE
- SFO
1 stop9h 40m
United Airlines
Deal found 7/7![United Airlines logo]()
$440
This Delta deal was found by Cheapflights users on 7/7. 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.
Fri 8/146:00 am
SFO
- ABE
1 stop8h 23m
Delta
Mon 8/176:08 pm
ABE
- SFO
1 stop8h 50m
Delta
Deal found 7/7![Delta logo]()
$448
Best flights from San Francisco to AllentownDiscover carefully curated flight deals from San Francisco to Allentown that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 8, 2026.
Discover carefully curated flight deals from San Francisco to Allentown that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 8, 2026.
This Delta deal was found by Cheapflights users on 7/6. 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 8/286:00 am
SFO
- ABE
1 stop8h 19m
Delta
Wed 9/26:09 pm
ABE
- SFO
1 stop8h 49m
Delta
Deal found 7/6![Delta logo]()
$369
This United Airlines deal was found by Cheapflights users on 7/3. 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 9/1610:55 pm
SFO
- ABE
1 stop7h 44m
United Airlines
Wed 9/3010:37 am
ABE
- SFO
1 stop9h 43m
United Airlines
Deal found 7/3![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 7/7. 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 8/196:00 am
SFO
- ABE
1 stop8h 23m
Delta
Thu 12/175:40 pm
ABE
- SFO
1 stop9h 35m
Delta
Deal found 7/7![Delta logo]()
$393
This United Airlines deal was found by Cheapflights users on 7/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:30 pm
SFO
- ABE
1 stop7h 26m
United Airlines
Sat 10/3110:37 am
ABE
- SFO
1 stop11h 09m
United Airlines
Deal found 7/7![United Airlines logo]()
$479
This Delta deal was found by Cheapflights users on 7/7. 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.
Thu 8/206:20 am
SFO
- ABE
2 stops13h 03m
Delta
Thu 8/276:04 pm
ABE
- SFO
1 stop8h 54m
Delta
Deal found 7/7![Delta logo]()
$480
This Delta deal was found by Cheapflights users on 7/4. 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 8/126:00 am
SFO
- ABE
1 stop8h 23m
Delta
Mon 8/176:08 pm
ABE
- SFO
1 stop8h 50m
Delta
Deal found 7/4![Delta logo]()
$498
This Delta deal was found by Cheapflights users on 7/7. 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.
Thu 8/2011:15 pm
SFO
- ABE
1 stop10h 13m
Delta
Sun 12/131:00 pm
ABE
- SFO
1 stop9h 37m
Delta
Deal found 7/7![Delta logo]()
$501
This Delta deal was found by Cheapflights users on 7/3. 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.
Thu 10/86:00 am
SFO
- ABE
1 stop8h 15m
Delta
Tue 10/136:00 pm
ABE
- SFO
1 stop9h 15m
Delta
Deal found 7/3![Delta logo]()
$544
This Delta deal was found by Cheapflights users on 7/3. 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.
Mon 8/311:15 pm
SFO
- ABE
1 stop10h 13m
Delta
Fri 8/76:08 pm
ABE
- SFO
2 stops17h 13m
Delta
Deal found 7/3![Delta logo]()
$550
Last-minute flights from San Francisco to AllentownDiscover last-minute flight deals from San Francisco to Allentown. Data last updated July 8, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Allentown. Data last updated July 8, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/6. 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 8/135:05 am
SFO
- ABE
1 stop8h 22m
American Airlines
Wed 8/196:00 am
ABE
- SFO
1 stop8h 28m
American Airlines
Deal found 7/6![American Airlines logo]()
$372
This Delta deal was found by Cheapflights users on 7/7. 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.
Fri 8/146:00 am
SFO
- ABE
1 stop8h 23m
Delta
Mon 8/176:08 pm
ABE
- SFO
1 stop8h 50m
Delta
Deal found 7/7![Delta logo]()
$448
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 8/176:00 am
SFO
- ABE
1 stop14h 14m
Multiple Airlines
Mon 8/247:00 am
ABE
- SFO
2 stops55h 52m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$346
This American Airlines deal was found by Cheapflights users on 7/4. 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.
Tue 8/1812:33 pm
SFO
- ABE
1 stop7h 52m
American Airlines
Tue 8/256:00 am
ABE
- SFO
1 stop8h 28m
American Airlines
Deal found 7/4![American Airlines logo]()
$397
This Delta deal was found by Cheapflights users on 7/7. 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 8/196:00 am
SFO
- ABE
1 stop8h 23m
Delta
Sun 12/135:40 pm
ABE
- SFO
1 stop9h 35m
Delta
Deal found 7/7![Delta logo]()
$369
This American Airlines deal was found by Cheapflights users on 7/5. 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.
Wed 8/1912:33 pm
SFO
- ABE
1 stop7h 52m
American Airlines
Wed 8/264:57 pm
ABE
- SFO
1 stop8h 43m
American Airlines
Deal found 7/5![American Airlines logo]()
$371
This Delta deal was found by Cheapflights users on 7/7. 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 8/196:00 am
SFO
- ABE
1 stop8h 23m
Delta
Thu 12/175:40 pm
ABE
- SFO
1 stop9h 35m
Delta
Deal found 7/7![Delta logo]()
$393
This Delta deal was found by Cheapflights users on 7/7. 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 8/196:00 am
SFO
- ABE
1 stop8h 23m
Delta
Sun 12/201:00 pm
ABE
- SFO
1 stop9h 37m
Delta
Deal found 7/7![Delta logo]()
$424
This United Airlines deal was found by Cheapflights users on 7/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2010:35 pm
SFO
- ABE
1 stop8h 22m
United Airlines
Thu 8/275:36 pm
ABE
- SFO
1 stop9h 40m
United Airlines
Deal found 7/7![United Airlines logo]()
$440
One-way flights from San Francisco to AllentownSearch for one-way flight options from San Francisco to Allentown. Find affordable one-way fares based on user searches. Data last updated July 8, 2026.
Search for one-way flight options from San Francisco to Allentown. Find affordable one-way fares based on user searches. Data last updated July 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/4. 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.
Tue 8/258:56 pm
SFO
- ABE
2 stops44h 54m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$178
This Delta deal was found by Cheapflights users on 7/6. 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.
Mon 8/2411:15 pm
SFO
- ABE
1 stop10h 13m
Delta
Deal found 7/6![Delta logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 10/152:07 pm
SFO
- ABE
2 stops26h 59m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 7/4. 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.
Wed 8/198:56 pm
SFO
- ABE
2 stops45h 50m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 8/216:00 am
SFO
- ABE
2 stops24h 29m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 7/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:30 pm
SFO
- ABE
2 stops23h 16m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 7/6. 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 8/248:23 pm
SFO
- ABE
2 stops16h 22m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$238
Find flight deals from San Francisco to Allentown
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Allentown (ABE). 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 July 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $346 (Kiwi.com) |
One-way from | $178 (Kiwi.com) |
Popular in | November |
Cheapest in | January |
Average price | $437 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Allentown 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 July 8, 2026.
Use the filters below to find and compare flights from San Francisco to Allentown that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
San FranciscoAllentown
SFO - ABE
SFOABE
San Francisco
Fri 8/28
6:00 am-5:19 pm
1 stop8h 19m
Allentown-Bethlehem
Wed 9/2
6:09 pm-11:58 pm
1 stop8h 49m
$369
San FranciscoAllentown
SFO - ABE
SFOABE
San Francisco
Wed 9/16
10:55 pm-9:39 am
1 stop7h 44m
Allentown-Bethlehem
Wed 9/30
10:37 am-5:20 pm
1 stop9h 43m
$369
San FranciscoAllentown
SFO - ABE
SFOABE
San Francisco
Wed 8/19
6:00 am-5:23 pm
1 stop8h 23m
Allentown-Bethlehem
Thu 12/17
5:40 pm-12:15 am
1 stop9h 35m
$393
San FranciscoAllentown
SFO - ABE
SFOABE
San Francisco
Tue 10/27
11:30 pm-9:56 am
1 stop7h 26m
Allentown-Bethlehem
Sat 10/31
10:37 am-6:46 pm
1 stop11h 09m
$479
San FranciscoAllentown
SFO - ABE
SFOABE
San Francisco
Thu 8/20
6:20 am-10:23 pm
2 stops13h 03m
Allentown-Bethlehem
Thu 8/27
6:04 pm-11:58 pm
1 stop8h 54m
$480
San FranciscoAllentown
SFO - ABE
SFOABE
San Francisco
Wed 8/12
6:00 am-5:23 pm
1 stop8h 23m
Allentown-Bethlehem
Mon 8/17
6:08 pm-11:58 pm
1 stop8h 50m
$498
San FranciscoAllentown
SFO - ABE
SFOABE
San Francisco
Thu 8/20
11:15 pm-12:28 pm
1 stop10h 13m
Allentown-Bethlehem
Sun 12/13
1:00 pm-7:37 pm
1 stop9h 37m
$501
San FranciscoAllentown
SFO - ABE
SFOABE
San Francisco
Thu 10/8
6:00 am-5:15 pm
1 stop8h 15m
Allentown-Bethlehem
Tue 10/13
6:00 pm-12:15 am
1 stop9h 15m
$544
San FranciscoAllentown
SFO - ABE
SFOABE
San Francisco
Mon 8/3
11:15 pm-12:28 pm
1 stop10h 13m
Allentown-Bethlehem
Fri 8/7
6:08 pm-8:21 am
2 stops17h 13m
$550
Cheapest one-way
San FranciscoAllentown
SFO - ABE
SFOABE
San Francisco
Wed 9/2
6:00 am-5:23 pm
1 stop8h 23m
$209
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from San Francisco to Allentown
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Allentown in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Francisco-Allentown flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Allentown flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Allentown flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Allentown flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Allentown flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Francisco to Allentown
Have a flexible travel schedule? Discover the best time to fly to Allentown from San Francisco with our price prediction graph.
SFO-ABE
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.
Reviews of airlines servicing Allentown
Get insights into the airlines that provide service to Allentown. 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 Allentown. Reviews last updated July 8, 2026.
Get a feel of what it's like to fly with American Airlines from San Francisco to Allentown by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.5
Entertainment
6.8
Overall
7.1
Crew
7.9
Comfort
7.2
Food
6.4
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Boarding
7.5
Entertainment
6.8
Overall
7.1
Crew
7.9
Comfort
7.2
Food
6.4
Reviews
1 / 20
2.0
MediocreJeremy,Sep 2025
SAN - PHL
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Allentown. 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.
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Other flights to Allentown
Explore flights to Allentown departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 8, 2026.
Alternative routes for San Francisco to Allentown
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Complete your trip
Complete your trip to Allentown by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from San Francisco to Allentown, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Francisco and Allentown flights
Browse other San Francisco and Allentown flight options. Last updated on July 8, 2026.
Other flights from San Francisco
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on July 8, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from San Francisco to Allentown
Discover the top airline that operate flights from San Francisco to Allentown. 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 July 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$289 | Average$452 | FlexibilityNo cancel fee | On-time71% |