SFO - ABE

$169 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 8/30. 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

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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Booking Insights
Flights Deals

Cheap Flights from San Francisco to Allentown (SFO-ABE)

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Allentown

Mon, Aug 25 - Sun, Aug 31
Delta Logo
10:59 pm - 12:16 pmSFO-ABE
10h 17m1 stop
Delta Logo
6:00 am - 12:57 pmABE-SFO
9h 57m1 stop
$309Delta
Find Deal
Mon, Aug 25 - Fri, Sep 5
Delta Logo
10:59 pm - 12:16 pmSFO-ABE
10h 17m1 stop
Delta Logo
2:30 pm - 10:38 pmABE-SFO
11h 08m1 stop
$323Delta
Find Deal
Wed, Aug 27 - Fri, Sep 5
Delta Logo
6:15 am - 5:34 pmSFO-ABE
8h 19m1 stop
Delta Logo
2:30 pm - 10:38 pmABE-SFO
11h 08m1 stop
$337Delta
Find Deal
Mon, Aug 25 - Sat, Sep 6
Delta Logo
10:59 pm - 12:16 pmSFO-ABE
10h 17m1 stop
Delta Logo
6:00 am - 11:38 amABE-SFO
8h 38m1 stop
$354Delta
Find Deal
Tue, Aug 26 - Sun, Aug 31
Delta Logo
5:55 am - 10:39 pmSFO-ABE
13h 44m2 stops
Delta Logo
6:00 am - 11:45 amABE-SFO
8h 45m1 stop
$357Delta
Find Deal
Mon, Aug 25 - Wed, Sep 3
United Airlines Logo
11:59 pm - 11:58 amSFO-ABE
8h 59m1 stop
United Airlines Logo
1:00 pm - 7:14 pmABE-SFO
9h 14m1 stop
$409United Airlines
Find Deal
Wed, Aug 13 - Sun, Aug 17
American Airlines Logo
8:10 am - 9:44 pmSFO-ABE
10h 34m1 stop
American Airlines Logo
6:15 am - 12:15 pmABE-SFO
9h 00m1 stop
$429American Airlines
Find Deal
Wed, Aug 13 - Sun, Aug 17
American Airlines Logo
6:10 am - 6:00 pmSFO-ABE
8h 50m1 stop
American Airlines Logo
6:15 am - 2:30 pmABE-SFO
11h 15m2 stops
$434American Airlines
Find Deal
Tue, Aug 19 - Wed, Aug 20
United Airlines Logo
11:10 pm - 11:58 amSFO-ABE
9h 48m1 stop
United Airlines Logo
5:28 pm - 11:59 pmABE-SFO
9h 31m1 stop
$482United Airlines
Find Deal
Thu, Aug 14 - Sun, Aug 17
 Logo
11:59 pm - 8:38 pmSFO-ABE
17h 39m2 stops
 Logo
7:00 am - 10:56 pmABE-SFO
18h 56m2 stops
Booking Insights

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
Cheapest flight$169
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly and prices are also 8% 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 $169 for a one-way ticket and $309 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, Star Alliance, and oneworld 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 $463 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 $568 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.

Reviews of the 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 7980 reviews
7.9Comfort
8.2Boarding
8.5Crew
7.9Entertainment
7.3Food
Airline reviews

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.

4.0 OkayMrs., Jul 2025LAX - RDU
Read more Delta reviews

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.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

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

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.

The best airline I have ever travel , really good customer service, attention and service !!

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

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.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Breakfast was not loaded at SFO due to catering company change. Seems like a major airline at a major hub would have thought of something else or warned passengers to pick up food before boarding a 3 hour flight.

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

They hired a new catering company the same day of my flight. They botched the job by not delivering the right carts and after THREE HOURS waiting, the flight crew timed out (flight was 19 hours long and FAA rules state crew can’t work more than 14 hours long). So they CANCELED OUR FLIGHT!! Worst experience ever. Avoid UAL at all costs.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

Delayed flight, so I switched fights to SFO to Phoenix , Phoenix to DSM. Excellent service through American Airlines

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.

The delays and cancellations kept me stuck in Miami for an additional 24 hours, and the whole thing seemed extremely disorganized

Everything was great except British airways lost our luggage that was gate checked all the way through to Italy. No one knows currently where one is and the other one may be in route to Amsterdam to meet us but not sure. If you can Hale’s it would be awesome. The website is not helpful.

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.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.