SFO - ABE

$209 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 5/9. 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

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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Everything you should know

Cheapest round-trip
$349
Overall average: $463
American Airlines
Wed 5/27Tue 6/2
SFO - ABE • 1 stop
Cheapest one-way
$209
Typical prices: $145-$318
Delta
Sat 5/9
SFO - ABE • 1 stop
Top airlines
Cheapest • from $349 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Francisco and Allentown. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $430 (round-trip)
Shortest trip • 7h 48m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 49% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Allentown!
Flight Deals
Booking Insights
Flight 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

Wed, May 27 - Tue, Jun 2
American Airlines Logo
1:17 pm - 12:21 am
SFO
-
ABE
8h 04m
1 stop
American Airlines Logo
5:46 pm - 10:49 pm
ABE
-
SFO
8h 03m
1 stop
$349American Airlines
Wed, May 27 - Tue, Jun 2
American Airlines Logo
10:07 am - 12:21 am
SFO
-
ABE
11h 14m
2 stops
American Airlines Logo
5:46 pm - 10:49 pm
ABE
-
SFO
8h 03m
1 stop
$354American Airlines
Wed, Apr 8 - Wed, Apr 15
American Airlines Logo
12:30 am - 11:27 am
SFO
-
ABE
7h 57m
1 stop
American Airlines Logo
6:04 am - 3:25 pm
ABE
-
SFO
12h 21m
2 stops
$374American Airlines
Wed, Apr 8 - Wed, Apr 15
American Airlines Logo
12:30 am - 11:27 am
SFO
-
ABE
7h 57m
1 stop
American Airlines Logo
6:04 am - 12:16 pm
ABE
-
SFO
9h 12m
1 stop
$410American Airlines
Sat, Jul 4 - Thu, Jul 9
American Airlines Logo
1:19 pm - 12:23 am
SFO
-
ABE
8h 04m
1 stop
American Airlines Logo
5:18 pm - 11:51 pm
ABE
-
SFO
9h 33m
1 stop
$429American Airlines
Mon, Jun 1 - Sat, Jun 6
United Airlines Logo
12:50 am - 1:48 pm
SFO
-
ABE
9h 58m
1 stop
United Airlines Logo
5:36 pm - 12:30 am
ABE
-
SFO
9h 54m
1 stop
$441United Airlines
Fri, May 1 - Sun, May 3
Delta Logo
11:57 pm - 12:12 pm
SFO
-
ABE
9h 15m
1 stop
Delta Logo
12:53 pm - 8:24 pm
ABE
-
SFO
10h 31m
1 stop
$448Delta
Sat, Jul 4 - Thu, Jul 9
American Airlines Logo
5:00 am - 6:32 pm
SFO
-
ABE
10h 32m
1 stop
American Airlines Logo
5:18 pm - 11:51 pm
ABE
-
SFO
9h 33m
1 stop
$449American Airlines
Tue, May 12 - Sat, May 16
Delta Logo
11:59 pm - 12:19 pm
SFO
-
ABE
9h 20m
1 stop
Delta Logo
12:59 pm - 8:41 pm
ABE
-
SFO
10h 42m
1 stop
$464Delta
Wed, May 27 - Tue, Jun 2
American Airlines Logo
10:07 am - 12:21 am
SFO
-
ABE
11h 14m
2 stops
American Airlines Logo
6:00 am - 1:04 pm
ABE
-
SFO
10h 04m
2 stops
$469American Airlines
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 is the cheapest month to fly from San Francisco to Allentown?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Allentown, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to Allentown is January, where tickets cost $298 (return) on average. On the other hand, the most expensive months are November and December, where the average cost of round-trip tickets is $2,319 and $542 respectively.

Good to know

Low seasonMarch
Cheapest flight$209
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly and prices are also 9% 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 $209 for a one-way ticket and $349 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?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between San Francisco and Allentown, with Star Alliance 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 $428 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $659 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.
7.9
DeltaOverall score based on 8302 reviews
7.9Comfort
8.1Boarding
7.2Food
7.8Entertainment
8.5Crew
Airline reviews

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

2.0 MediocreAnonymous, Mar 2026
LAX - BNA
Read more Delta reviews

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Delayed. Hot. Passenger next to me was so large I couldn’t move.

2+hrs delay without any reason provided and a cramped flight

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Originally, I was booked in economy. I paid several hundred additional dollars to upgrade to first class. Then I paid several more hundred dollars to change my flight to a slightly earlier flight. I asked if the changed flight would also seat me in first class, and I was told that it would. When I boarded the plane, however, I was seated in economy. So, I paid $500-600 more than I paid for my original ticket for an upgrade and a changed flight - received the changed flight (which was nice), but did not receive the upgrade. So, I was not completely satisfied.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

it was a very short flight so my expectations were low.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

The flight crew where really good. Better then the crew from BNE to SFO

left on time, reasonable boarding process arrived early luggage came out quickly

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

Not good. One of my luggage is missing. And until now they can’t find it

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

Dloght delayed by 2.5 hrs . Common theme in my last four american floghts

I didn't end up taking this flight. I got up at 4am for a flight that was supposed to board at 6am - at 5:55am you delayed the flight to 10am. The airport is under construction so I switched to a later flight as I wasn't going to sit in the airport for 4 hours. They said the delay was due to the crew needing rest from a flight coming in late the night before - if that was the case then I think you should have delayed the flight much sooner so that passengers wouldn't get up so early and get to the airport to sit and wait.

The worst Airline ever. They centered my second flight and leave me in NY. They don’t have any representatives at the airport and they don’t respond to calls. Basically I got stuck. I will never purchase through there again.

The chicken wrap was tiny ($13 for what looked like a 1/3 of a normal wrap?) and disgusting.

I very rarely fly American and my experience today reenforces that is the correct decision. While the staff were all very courteous, our flight was first thing in the morning so there was no reason to be delayed, yet appropriate maintenance checks weren’t completed prior to our flight so we were delayed multiple times. Not a great showing, American Airlines.

Boarding is always an ordeal. Less dogs on flights. I am highly allergic to dogs and cats. Why are there so many animals these days?

I was on a small regional flight from Detroit to Philadelphia. When we landed the outside cruise needed to turn something off with the engine, which took quite a long time. Then, when they allowed us to get off the plane it was outside. They took their time, unloading all the luggage and waited till they unloaded all the luggage before they brought it over to us. It was 9 o’clock at night freezing cold out, and there was no proactive hustle to try to get people their luggage. It was really one of the worst experiences I think I’ve ever had with American until a manager came over. I don’t think they were going to even consider pulling the luggage over to the people that had been waiting outside for at least 10 minutes in the freezing cold.

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

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

Information on your arrival and departure airports