Find Cheap Flights from Allentown-Bethlehem to London Heathrow (ABE - LHR)

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FAQs for Booking Allentown-Bethlehem to London Heathrow Flights

How long does a flight from Allentown-Bethlehem to London Heathrow take?
An average nonstop flight takes 9h 15m, covering a distance of 3510 miles.
Which airlines provide the cheapest flights from Allentown-Bethlehem to London Heathrow?
In the past 3 days, the cheapest round-trip tickets were found on United ($891), KLM ($901) and Multiple Airlines ($903).
Do I need a passport to fly between Allentown-Bethlehem and London Heathrow?
Yes.
What’s the cheapest day of the week to fly Allentown-Bethlehem to London Heathrow?
For Allentown-Bethlehem to London Heathrow, Wednesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from London Heathrow back to Allentown-Bethlehem, the best deals are generally found on Monday, with Sunday being the most expensive.

Book cheap flights from Allentown-Bethlehem to London Heathrow (round-trip)

Airports
Origin
Allentown
$891
only
$891
Destination
London
$891
only
$891
Wed, Mar 21
ABE
LHR
9h 15m
Thu, Apr 5
LHR
ABE
11h 35m
Trip: 16 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52353 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
MUC
Mediocre 2.0

Our plane was defective so had to be replaced. This is fine, I certainly am willing to wait for a new plane if it means not blowing up over the ocean. The problem was how little the attendants at the gate communicated the situation to us. What should have been a brief layover became a 12 hour nightmare. The gate attendants did finally issue meal vouchers but they waited until 10 minutes before all the restaurants closed and only issued $10 a person. This is enough to buy a hot dog at an airport... We were told there wouldn't be any rescheduling of missed connections until we were "airborne". This resulted in mass panic and confusion upon reaching our destination. We were told to go to the service desk, half an airport away, but once the entire passenger contents of the plane arrived at that far flung service desk, we were mostly turned away to seek help at individual gates. This lack of communication meant I missed the next next available connecting flight and now have a further six hour layover. I understand accidents happen and planes can break down but the nearly complete lack of care and customer attention is, frankly, disappointing. I've now had nearly an entire day added to my travel time. If I'd been willing to loose that time I would have paid $600 less for my ticket. United finally offered a token of their appreciation : a $100 e-voucher. I have spent more than that on food and coffee in airports for the past two days while trying to survive until my next connections.

EWR
CLT
Excellent 8.0

2 sear rows so no middle seat

Late departure

LHR
SFO
Excellent 9.0

Fortunately as a passenger the economy flight area was very spacious due to low numbers of passengers. Which provided a comfortable seating space.

The entertainment could and been a little more variable in the film range provided. But generally overall I had a excellent flight. Food was good. Crew were very good and I would definitely consider flying United on my next visit out and recommend that my family did. Thank you United.

IAD
MUC
Good 6.3

Crew and food.

The old bait and switch. United is not and will never be Lufthansa. Cattle call seating.

ORD
HNL
Mediocre 3.3

Plane sat on runway & subsequently returned to gate due to mechanical issue resulting in 2.5 hour departure delay. Boarding was chaotic - flight attendant said procedure not consistent with UA practices. Food only available is purchased from UA, and what food was available ran out (I never did get fed on the 11+ hour flight). Cabin very cold.

Wed, Mar 21
ABE
LHR
11h 35m
Mon, Apr 2
LHR
ABE
14h 26m
Trip: 13 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1540 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
ABZ
AMS
Excellent 10.0

Thankful for coffee being served without charge. Not all airlines do that.

JNB
AMS
Excellent 8.0

Good multi media access and content

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

SFO
AMS
Excellent 10.0

From pre-boarding, to boarding, to the food, and the attentiveness, everything was top notch! The cleanliness of the plane was only topped by the friendliness of the crew.

The flight was marked at almost 11hrs but ended up being only 9...not a negative other than it meant not spending as much time on board!

FCO
AMS
Excellent 10.0

Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam

Tue, Jan 9
ABE
LHR
27h 05m
Wed, Feb 7
LHR
ABE
16h 37m
Trip: 30 days
Overall 0.0 Poor
Based on 0 reviews
Thu, May 24
ABE
LHR
12h 29m
Thu, May 31
LHR
ABE
14h 26m
Trip: 8 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 962 reviews
Overall
8.1
Boarding
8.3
Comfort
7.8
Crew
8.5
Entertainment
8.0
Food
7.8
SFO
LHR
Mediocre 2.0

Flight was cancelled .

LAX
LHR
Excellent 8.3

The crew was the best part of my experience, super nice and accomodating

the wifi had subpar performance

BWI
DTW
Mediocre 3.3

The crew was rude.

CHC
BNE
Excellent 9.6

The crew were very friendly and attentive through out flight.

LAX
BNE
Excellent 10.0

Very polite and helpful staff.

Sun, Mar 25
ABE
LHR
11h 55m
Thu, Apr 5
LHR
ABE
14h 38m
Trip: 12 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1540 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
ABZ
AMS
Excellent 10.0

Thankful for coffee being served without charge. Not all airlines do that.

AMS
ATL
Good 7.0

newer plane, good staff

need better and more food options, more often

JFK
AMS
Good 7.6

Two hours delay in the start.

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

SFO
AMS
Excellent 10.0

From pre-boarding, to boarding, to the food, and the attentiveness, everything was top notch! The cleanliness of the plane was only topped by the friendliness of the crew.

The flight was marked at almost 11hrs but ended up being only 9...not a negative other than it meant not spending as much time on board!

Thu, May 24
ABE
LHR
17h 20m
Fri, Jun 1
LHR
ABE
15h 36m
Trip: 9 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 962 reviews
Overall
8.1
Boarding
8.3
Comfort
7.8
Crew
8.5
Entertainment
8.0
Food
7.8
LAX
MEL
Excellent 8.0

I like flying Virgin whether Australia or Atlantic!

Just a little bit more leg room.

CHC
BNE
Excellent 9.6

The crew were very friendly and attentive through out flight.

SFO
LHR
Mediocre 2.0

Flight was cancelled .

DTW
LHR
Good 7.6

Excellent entertainment options, out stewardess was fantastic.

Cramped seats.

MEL
LAX
Good 6.6

The flight crew from the mel to lax route were excellent. One was especially attentive to my 2 toddlers and gave me a bit of a break, something that has NEVER happened in over 40 flights traveling with children.

I think something was broken in our section (mel to lax) as it was uncomfortably hot and the flight crew tried to get it cooler but could not. I’ve never experienced a flight that was too hot, usually the opposite. It was stifling.

Mon, Mar 26
ABE
LHR
11h 55m
Thu, Apr 5
LHR
ABE
14h 38m
Trip: 11 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1540 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
FCO
AMS
Excellent 10.0

Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

ABZ
AMS
Excellent 10.0

Thankful for coffee being served without charge. Not all airlines do that.

JFK
AMS
Good 7.6

Two hours delay in the start.

SFO
AMS
Excellent 10.0

From pre-boarding, to boarding, to the food, and the attentiveness, everything was top notch! The cleanliness of the plane was only topped by the friendliness of the crew.

The flight was marked at almost 11hrs but ended up being only 9...not a negative other than it meant not spending as much time on board!

Thu, Jan 11
ABE
LHR
19h 10m
Sun, Jan 14
LHR
ABE
14h 44m
$1044
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 27
ABE
LHR
11h 55m
Thu, Apr 5
LHR
ABE
14h 38m
Trip: 10 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1540 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
JNB
AMS
Excellent 8.0

Good multi media access and content

AMS
ATL
Good 7.0

newer plane, good staff

need better and more food options, more often

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

SFO
AMS
Okay 5.0

Crew was very helpful.food

Food was not upto the mark.

JNB
AMS
Excellent 9.6

Comfort economy well worth the extra.

Thu, May 24
ABE
LHR
12h 29m
Wed, May 30
LHR
ABE
11h 41m
$1054
Trip: 7 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 962 reviews
Overall
8.1
Boarding
8.3
Comfort
7.8
Crew
8.5
Entertainment
8.0
Food
7.8
MEL
LAX
Good 7.3

in flight experience is above average

The computer system really needs a lot of improvement. We were checking in with our infant daughter and it took 50 minutes to check in with a senior person helping the check in person and phone calls to their technical assistance. We were told an infant is difficult in their system, and our dual national daughter was another layer of complication.

LAX
BNE
Excellent 10.0

Very polite and helpful staff.

CHC
BNE
Excellent 9.6

The crew were very friendly and attentive through out flight.

LAX
MEL
Excellent 10.0

Crew was very nice helpful and attentionate Entertainment had plenty of variety maybe not so many new movies but enough to find one you have not seen or classic you could watch again Food was good

We weighted our hand luggage at the counter and then they ask again during boarding little confusing

LAX
LHR
Excellent 8.3

The crew was the best part of my experience, super nice and accomodating

the wifi had subpar performance

Wed, Mar 28
ABE
LHR
12h 29m
Thu, Apr 5
LHR
ABE
14h 38m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1540 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
FCO
AMS
Excellent 10.0

Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

AMS
IAH
Excellent 8.6

Old airplane with not really comfy seats. No outlets for charging devices. Very old entertainment screen.

SFO
AMS
Excellent 10.0

From pre-boarding, to boarding, to the food, and the attentiveness, everything was top notch! The cleanliness of the plane was only topped by the friendliness of the crew.

The flight was marked at almost 11hrs but ended up being only 9...not a negative other than it meant not spending as much time on board!

AMS
PRG
Excellent 10.0

Equally friendly crew and experience. It was complimented by the time we got to spend in the fantastic KLM lounge while we waited for the flight.

Nothing!

Thu, May 24
ABE
LHR
12h 29m
Sun, May 27
LHR
ABE
14h 29m
$1084
Trip: 4 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 962 reviews
Overall
8.1
Boarding
8.3
Comfort
7.8
Crew
8.5
Entertainment
8.0
Food
7.8
LHR
BOS
Excellent 8.0

The crew was excellent. Flight was quite comfortable. Nice attention to service

I would have appreciated another round of hot drinks.

SFO
LHR
Mediocre 2.0

Flight was cancelled .

LAX
LHR
Excellent 8.3

The crew was the best part of my experience, super nice and accomodating

the wifi had subpar performance

MEL
LAX
Good 7.3

in flight experience is above average

The computer system really needs a lot of improvement. We were checking in with our infant daughter and it took 50 minutes to check in with a senior person helping the check in person and phone calls to their technical assistance. We were told an infant is difficult in their system, and our dual national daughter was another layer of complication.

LAX
LHR
Good 6.0

good plane and timing

meal was not served according to the request and no sound support from the staff

Mon, May 21
ABE
LHR
19h 50m
Thu, May 31
LHR
ABE
14h 38m
Trip: 11 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1540 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
SFO
AMS
Excellent 10.0

From pre-boarding, to boarding, to the food, and the attentiveness, everything was top notch! The cleanliness of the plane was only topped by the friendliness of the crew.

The flight was marked at almost 11hrs but ended up being only 9...not a negative other than it meant not spending as much time on board!

AMS
IAH
Excellent 8.6

Old airplane with not really comfy seats. No outlets for charging devices. Very old entertainment screen.

ABZ
AMS
Excellent 10.0

Thankful for coffee being served without charge. Not all airlines do that.

JFK
AMS
Good 7.6

Two hours delay in the start.

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

Tue, May 22
ABE
LHR
11h 55m
Thu, May 31
LHR
ABE
14h 38m
Trip: 10 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1540 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
ABZ
AMS
Excellent 10.0

Thankful for coffee being served without charge. Not all airlines do that.

KRK
AMS
Mediocre 3.0

Flight way delayed 3 hours. Staff gave no information and wouldn't help rebook us onto other flights. They gave us food vouchers 2 minutes before we finally boarded, so we couldn't use them. The food on the plane had spoiled so we were all starving on the flight, and we all missed our connections. Horrible experience and wouldn't fly with KLM again.

JNB
AMS
Excellent 8.0

Good multi media access and content

FCO
AMS
Excellent 10.0

Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam

AMS
PRG
Excellent 10.0

Equally friendly crew and experience. It was complimented by the time we got to spend in the fantastic KLM lounge while we waited for the flight.

Nothing!

Sat, Mar 3
ABE
LHR
19h 25m
Sat, Mar 10
LHR
ABE
19h 01m
$1197
Trip: 8 days
8.1ExcellentShow reviews
Overall 8.1 Excellent
Based on 962 reviews
Overall
8.1
Boarding
8.3
Comfort
7.8
Crew
8.5
Entertainment
8.0
Food
7.8
LHR
BOS
Excellent 8.0

The crew was excellent. Flight was quite comfortable. Nice attention to service

I would have appreciated another round of hot drinks.

LAX
LHR
Excellent 8.3

The crew was the best part of my experience, super nice and accomodating

the wifi had subpar performance

LAX
MEL
Excellent 10.0

Crew was very nice helpful and attentionate Entertainment had plenty of variety maybe not so many new movies but enough to find one you have not seen or classic you could watch again Food was good

We weighted our hand luggage at the counter and then they ask again during boarding little confusing

SFO
LHR
Mediocre 2.0

Flight was cancelled .

LAX
BNE
Excellent 10.0

Very polite and helpful staff.

Sun, May 27
ABE
LHR
11h 45m
Wed, Jun 6
LHR
ABE
14h 38m
Trip: 11 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1540 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
JNB
AMS
Excellent 8.0

Good multi media access and content

KRK
AMS
Mediocre 3.0

Flight way delayed 3 hours. Staff gave no information and wouldn't help rebook us onto other flights. They gave us food vouchers 2 minutes before we finally boarded, so we couldn't use them. The food on the plane had spoiled so we were all starving on the flight, and we all missed our connections. Horrible experience and wouldn't fly with KLM again.

SFO
AMS
Excellent 10.0

From pre-boarding, to boarding, to the food, and the attentiveness, everything was top notch! The cleanliness of the plane was only topped by the friendliness of the crew.

The flight was marked at almost 11hrs but ended up being only 9...not a negative other than it meant not spending as much time on board!

AMS
PRG
Excellent 10.0

Equally friendly crew and experience. It was complimented by the time we got to spend in the fantastic KLM lounge while we waited for the flight.

Nothing!

JFK
AMS
Good 7.6

Two hours delay in the start.

Sun, Mar 25
ABE
LHR
17h 20m
Mon, Apr 2
LHR
ABE
14h 26m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1540 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
AMS
PRG
Excellent 10.0

Equally friendly crew and experience. It was complimented by the time we got to spend in the fantastic KLM lounge while we waited for the flight.

Nothing!

AMS
ATL
Good 7.0

newer plane, good staff

need better and more food options, more often

ABZ
AMS
Excellent 10.0

Thankful for coffee being served without charge. Not all airlines do that.

SFO
AMS
Okay 5.0

Crew was very helpful.food

Food was not upto the mark.

SFO
AMS
Excellent 10.0

From pre-boarding, to boarding, to the food, and the attentiveness, everything was top notch! The cleanliness of the plane was only topped by the friendliness of the crew.

The flight was marked at almost 11hrs but ended up being only 9...not a negative other than it meant not spending as much time on board!

Mon, Mar 26
ABE
LHR
12h 29m
Mon, Apr 2
LHR
ABE
14h 26m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1540 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
SFO
AMS
Okay 5.0

Crew was very helpful.food

Food was not upto the mark.

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

AMS
IAH
Excellent 8.6

Old airplane with not really comfy seats. No outlets for charging devices. Very old entertainment screen.

JNB
AMS
Excellent 8.0

Good multi media access and content

JFK
AMS
Good 7.6

Two hours delay in the start.

Fri, Apr 27
ABE
LHR
12h 29m
Sat, May 5
LHR
ABE
14h 26m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1540 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
SFO
AMS
Excellent 10.0

From pre-boarding, to boarding, to the food, and the attentiveness, everything was top notch! The cleanliness of the plane was only topped by the friendliness of the crew.

The flight was marked at almost 11hrs but ended up being only 9...not a negative other than it meant not spending as much time on board!

JNB
AMS
Excellent 8.0

Good multi media access and content

JFK
AMS
Good 7.6

Two hours delay in the start.

AMS
ATL
Good 7.0

newer plane, good staff

need better and more food options, more often

FCO
AMS
Excellent 10.0

Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam

Mon, May 21
ABE
LHR
19h 50m
Fri, Jun 1
LHR
ABE
19h 53m
Trip: 12 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1540 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
JNB
AMS
Excellent 9.6

Comfort economy well worth the extra.

AMS
ATL
Good 7.0

newer plane, good staff

need better and more food options, more often

JNB
AMS
Excellent 8.0

Good multi media access and content

FCO
AMS
Excellent 10.0

Flight crew was pleasant and attentive. Seats were comfortable for economy as well. We were allowed to check in extra baggage for free at check in which really helped since we would be catching a connecting flight in Amsterdam

ATL
CLE
Okay 4.6

old plane, tight and uncomfortable

*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.