SFO - ABE

$143 Find Cheap Flights from San Francisco 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 from San Francisco to Allentown departing on 5/28. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Allentown

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Allentown, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Allentown, as well as popular online travel agencies
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Flights Deals

Cheap Flights from San Francisco 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 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.

Recent round-trip flight deals from San Francisco to Allentown

KAYAK's recommended round-trip deals from the most popular airlines that fly from San Francisco to Allentown.
Discover the best prices for you by selecting your travel dates on KAYAK.
Delta Logo
6:15 am - 5:06 pmSFO-ABE
7h 51m1 stop
Delta Logo
6:00 am - 11:43 amABE-SFO
8h 43m1 stop
$307Delta
Find Deal
Tue, Jun 3 - Tue, Jun 10
Delta Logo
10:59 pm - 12:32 pmSFO-ABE
10h 33m1 stop
Delta Logo
6:00 am - 11:43 amABE-SFO
8h 43m1 stop
$308Delta
Find Deal
Mon, Jun 2 - Tue, Jun 10
Delta Logo
10:59 pm - 12:32 pmSFO-ABE
10h 33m1 stop
Delta Logo
2:45 pm - 8:09 pmABE-SFO
8h 24m1 stop
$309Delta
Find Deal
Mon, Jun 2 - Sat, Jun 7
Delta Logo
6:15 am - 5:06 pmSFO-ABE
7h 51m1 stop
Delta Logo
5:50 pm - 11:32 pmABE-SFO
8h 42m1 stop
$322Delta
Find Deal
Tue, Jun 3 - Thu, Jun 5
American Airlines Logo
11:15 am - 12:20 amSFO-ABE
10h 05m2 stops
American Airlines Logo
6:15 am - 3:48 pmABE-SFO
12h 33m2 stops
$388American Airlines
Find Deal
Thu, Jun 5 - Tue, Jun 17
American Airlines Logo
9:15 am - 12:40 amSFO-ABE
12h 25m2 stops
American Airlines Logo
6:15 am - 3:57 pmABE-SFO
12h 42m2 stops
$417American Airlines
Find Deal
Tue, Jun 3 - Tue, Jun 10
 Logo
6:09 pm - 7:56 pmSFO-ABE
22h 47m2 stops
 Logo
6:00 am - 2:03 pmABE-SFO
35h 03m2 stops
Wed, May 14 - Sat, May 17
 Logo
6:09 pm - 7:56 pmSFO-ABE
22h 47m2 stops
 Logo
5:38 pm - 9:49 amABE-SFO
43h 11m3 stops
Wed, May 14 - Sat, May 17
United Airlines Logo
12:10 am - 4:57 pmSFO-ABE
13h 47m1 stop
United Airlines Logo
6:37 am - 11:36 amABE-SFO
7h 59m1 stop
$731United Airlines
Find Deal
Tue, May 13 - Sat, May 17
United Airlines Logo
11:55 pm - 9:55 pmSFO-ABE
19h 00m1 stop
United Airlines Logo
5:35 pm - 12:30 amABE-SFO
9h 55m1 stop
$756United Airlines
Find Deal
Thu, Jul 3 - Mon, Jul 7
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KAYAK's insights & trends for San Francisco to Allentown flights

Get data-powered insights and trends into flights from San Francisco to Allentown to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from San Francisco to Allentown?

The average price of all round-trip flights from San Francisco to Allentown clicked on KAYAK for each day over the last 12 months.

When flying from San Francisco to Allentown, you should consider leaving on a Tuesday and avoid Sundays if you are looking for the best rates. For your return to San Francisco, you’ll find the best rates on Wednesdays and the most expensive ones on Mondays.

Good to know

Low seasonAugust
High seasonOctober
Cheapest flight$143
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from San Francisco to Allentown

When to book flights from San Francisco to Allentown

Are your dates flexible? Find out the best times to travel from San Francisco to Allentown based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Allentown

  • What is the cheapest flight from San Francisco to Allentown?

    In the last 3 days, the lowest price for a flight from San Francisco to Allentown was $143 for a one-way ticket and $307 for a round-trip.

  • Do I need a passport to fly between San Francisco and Allentown?

    No

  • Which aircraft models fly most regularly from San Francisco to Allentown?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Francisco to Allentown?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between San Francisco and Allentown, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from San Francisco to Allentown, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from San Francisco to Allentown are Delta and United Airlines. With an average price for the route of $592 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $579 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from San Francisco 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 to Allentown.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Allentown from San Francisco 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 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 with another airline. Booking your flights between San Francisco and ABE can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top 3 airlines serving from San Francisco to Allentown

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Allentown. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco 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.
8.0
DeltaOverall score based on 7936 reviews
7.3Food
7.9Comfort
8.5Crew
7.9Entertainment
8.2Boarding
Airline reviews

Delta flight was on time, seats were comfortable, and crew was nice.

8.0 ExcellentAnonymous, Apr 2025LAX - DEN
Read more Delta reviews

Delta flight was on time, seats were comfortable, and crew was nice.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

This was the second flight this week with flight attendant Marcus I’m not sure if his last name is Lane or Lang but this guy is awesome. He funny, attentive and his service is 5 stars. Marcus makes business travel more enjoyable !

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

New boarding doesn't make sense. Filling front first is slow.

Delta flight was great from the check in all the way to arrival. However, I had a very bad experience. I requested a wheelchair and the wheelchair employee that went to pick me up from the plane in Boston to bring me to the baggage claims told me I have to pay him. I was under the impression that it was a free service and I usually give tips but the person forced me to pay and since I said no because I was upset with his demand when my daughter walked in to pick me up he demanded payment from my daughter who paid him thinking maybe now it is a charged service.

Horrible. Grateful to be alive but spent 13 hours at airport only to return back to my familys house and flight changed to next day. They tried to fix a part on plane, had no back up plane and after 10 hours , reattempted the flight and it STILL wasn't fixed. We got a meal voucher and rescheduled flight but there should be some other compensation for the 15 hours spent in airport

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

Compared with other carriers business class for an overnight was not worth the extra expense.

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

Pilot Erika DeLong made us feel safe and at ease in a frankly scary time to be flying. Her warm smile and greeting and excellent command of the aircraft in foggy bumpy weather helped us all to calm our nerves and get us home safely.

AWFUL. I have had the experience of traveling with many airlines across the world, and hands down United Airlines is the worst. Not one flight was on time, and I don’t think I met one crew member or staff member who wasn’t rude.

For an 8.5 hour flight the service on board lacked a bit. Service start was slow, the food was worse than usual and they skipped the snack they were supposed to deliver before landing.

Wish movie and music choices changed more often. Mostly same from a month or two ago when I last flew.

It was good. Just that the seats could not be reclined. The people behind were not ready to let the chairs be reclined

Checkin was painful and slow! Lady didn’t seem to know what was going on and couldn’t explain the delay. Seemed ahe couldnt see the computer scree and we couldn’t hear her talk through her mask.

Plane left & arrived early- 5 Crew great. Wi fi - paid for 2, only 1 worked - so so. Waste of $. Coolie was good

British Airways staff are very polite and willing to help.

Wonderful as usual except for other guests that were unruly and not kept in check by the Crew.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

the pilot that landed this flight in Philadelphia did an amazing job, the weather was absolutely terrible and we landed safely.

Amazingly comfy flight - I had upgraded for a reasonable price and it was worth it. The food also was good.

The flight was just perfect! We left a few minutes early, had a smooth flight and fortunately had landed before the terrible accident that took off from North Philadelphia airport shortly thereafter.

Staff at the gate were incredibly rude, hostile and threatening. Never fly American Airlines.

After several delays and being rebooked onto a layer flight, I had to speak to three AA agents for baggage claim to get an attendant. All were in foul mode and reluctant to assist or offer any assistance.

Timely boarding process, made up for lost time even after a lengthy wait for de-icing

Everything you need to know for your flight from San Francisco to Allentown

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