ABE

$224 Find Cheap Flights from San Francisco Bay Area to Allentown

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Allentown departing on 12/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from San Francisco Bay Area to Allentown

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco Bay Area to Allentown that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco Bay Area to Allentown

Fri, Dec 5 - Mon, Dec 8
American Airlines Logo
8:20 am - 10:58 pmSFO-ABE
11h 38m2 stops
American Airlines Logo
1:48 pm - 10:09 pmABE-SFO
11h 21m1 stop
$314American Airlines
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Sat, Mar 7 - Wed, Mar 11
Delta Logo
10:30 pm - 11:07 amSJC-ABE
9h 37m1 stop
Delta Logo
6:30 am - 12:09 pmABE-SJC
8h 39m1 stop
$338Delta
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Fri, Dec 12 - Sun, Dec 14
American Airlines Logo
8:20 am - 10:58 pmSFO-ABE
11h 38m2 stops
American Airlines Logo
2:01 pm - 8:01 pmABE-SFO
9h 00m1 stop
$342American Airlines
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Wed, Nov 19 - Sun, Nov 23
American Airlines Logo
8:20 am - 10:52 pmSFO-ABE
11h 32m2 stops
American Airlines Logo
5:10 pm - 10:57 pmABE-SFO
8h 47m1 stop
$354American Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
American Airlines Logo
8:20 am - 10:58 pmSFO-ABE
11h 38m2 stops
American Airlines Logo
1:48 pm - 10:36 pmABE-SFO
11h 48m2 stops
$384American Airlines
Find Deal
Sat, Nov 15 - Mon, Nov 17
Delta Logo
6:00 am - 5:19 pmSFO-ABE
8h 19m1 stop
Delta Logo
6:00 pm - 12:13 amABE-SFO
9h 13m1 stop
$389Delta
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Sat, Mar 7 - Wed, Mar 11
Delta Logo
10:30 pm - 11:07 amSJC-ABE
9h 37m1 stop
Delta Logo
5:40 pm - 11:00 amABE-SJC
20h 20m2 stops
$421Delta
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Wed, Nov 19 - Sun, Nov 23
United Airlines Logo
6:00 am - 4:47 pmSFO-ABE
7h 47m1 stop
United Airlines Logo
5:22 pm - 10:37 pmABE-SFO
8h 15m1 stop
$464United Airlines
Find Deal
Sat, Nov 15 - Wed, Nov 19
United Airlines Logo
5:10 am - 4:47 pmSFO-ABE
8h 37m1 stop
United Airlines Logo
1:00 pm - 7:10 pmABE-SFO
9h 10m1 stop
$489United Airlines
Find Deal
Sat, Nov 15 - Wed, Nov 19
United Airlines Logo
6:30 am - 4:47 pmSJC-ABE
7h 17m1 stop
United Airlines Logo
1:00 pm - 6:48 pmABE-SJC
8h 48m1 stop
$489United Airlines
Find Deal

Everything you should know

Cheapest round-trip
$314
American Airlines
Fri 12/5Mon 12/8
SFO - ABE • 2 stops
Cheapest one-way
$224
Typical prices: $285-$424
Delta
Thu 12/25
SFO - ABE • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Allentown!
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$224
Best time to beat the crowds but there is an average 16% increase in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from San Francisco to Allentown

FAQs for booking flights from San Francisco Bay Area to Allentown

  • How does KAYAK find such low prices on flights from San Francisco Bay Area to Allentown?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco Bay Area to Allentown.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco Bay Area to Allentown?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Allentown from San Francisco Bay Area is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco Bay Area to Allentown?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Allentown with an airline and back to San Francisco Bay Area with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco Bay Area to Allentown?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Allentown from San Francisco Bay Area up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from San Francisco Bay Area to Allentown

 
Need help choosing which airline to fly with from San Francisco Bay Area to Allentown? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8001 reviews
8.2Boarding
7.3Food
8.5Crew
7.9Entertainment
7.9Comfort
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

Boarded plane and then delayed 1.5 hours while on the plane

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

the trip to madrid was uncomfortable with my legs touching the seat in front of me

The Phildalphia to Allentown portion was a BUS, not a plane. All was as expected.

Very crowded flight but what can you expect these days?? Crew was accommodating.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

Internet was a bit expensive and did not work ask that week otherwise a good flight

The flight had a delay that made me being in a real rush to take the second flight. The delay was almost for 2 hours. They moved us from gate to gate in 4 times. Once I arrived to Philadelphia, I got to run thorough all the airport, as the train was already closed by that time. So I got sick with asthma for all the running I had to do. And I was the last one to board, when it was almost closed. So irresponsable with the people

Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Overall, a good experience. The food, however, was subpar. The breakfast was a joke.

I was late from Jacksonville, FL but the limited interaction I had with the Philly crew was great.

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