Find Cheap Flights from Spain to Allentown-Bethlehem

Search hundreds of travel sites at once for deals on flights to Allentown-Bethlehem

Sun 12/17
Sun 12/24
Any month
Compare vs. KAYAK |

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

Airports
Origin
Barcelona
$1095
only
$1095
Madrid
$1339
only
$1339
Destination
Allentown
$1095
only
$1095
Tue, Feb 6
BCN
ABE
19h 54m
Mon, Feb 19
ABE
BCN
15h 30m
$1095
Trip: 14 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Mar 26
MAD
ABE
16h 20m
Mon, Apr 16
ABE
MAD
10h 25m
$1339
Trip: 22 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
DEN
PSP
Good 6.6

Seats were incredibly uncomfortable. Why no food on a 4 hr+ flight?

ORD
CDG
Okay 4.0

Very helpful accommodating wife with wheelchair. Thank you.

The food was not tasty. Check in via kiosk was difficult for me, a senior citizen. Entertainment was very limited.

COS
IAH
Good 6.6

I really like how your flights are inexpensive compared to others when trying to purchase a last minute ticket.

The last two times I traveled ( I flew with United Airlines ) and both times my flights were delayed. The first time it was delayed by 4 hours and made me miss an appointment. The second time it was delayed by over 13 hours. It was nice that United had put me in a hotel room for the night, but again it took away from time in which I needed to be somewhere else.

PVR
ORD
Excellent 8.0

Arrived earlier than expected.

Waited an hour for the gate to be vacate by another plane.

CUN
IAD
Excellent 10.0

On time

Nothing

Fri, Mar 30
MAD
ABE
18h 26m
Mon, Apr 16
ABE
MAD
20h 45m
$1382
Trip: 18 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1544 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
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.

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.

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
IAH
Excellent 8.6

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

Sat, Jan 13
BCN
ABE
15h 59m
Thu, Jan 18
ABE
BCN
17h 40m
$1265
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Mar 28
MAD
ABE
16h 20m
Mon, Apr 16
ABE
MAD
10h 25m
$1339
Trip: 20 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAH
LFT
Okay 4.0

Never made it and had to go yet to another desk because it was a united flight this was the worst i have ever experienced

DEN
PSP
Good 6.6

Seats were incredibly uncomfortable. Why no food on a 4 hr+ flight?

COS
DEN
Excellent 8.0

Nice staff, helpful front desk and flight attendants.

No wifi, carry on fee, small seats

COS
IAH
Good 6.6

I really like how your flights are inexpensive compared to others when trying to purchase a last minute ticket.

The last two times I traveled ( I flew with United Airlines ) and both times my flights were delayed. The first time it was delayed by 4 hours and made me miss an appointment. The second time it was delayed by over 13 hours. It was nice that United had put me in a hotel room for the night, but again it took away from time in which I needed to be somewhere else.

EWR
AMS
Good 6.6

I ordered a special meal and it was delicious! Because I have dietary concerns, I often have to order a special meal. Usually, I find that the alternatives meals are second thoughts and thus can be rather tasteless. I was very thankful for my meal.

The plane was so tiny we were packed in it like sardines. I am a rather small person (barely 5 feet tall) and usually have no complaints about space on a flight but even my knees hit the back of the seat in front of me.

Fri, Mar 30
MAD
ABE
18h 26m
Fri, Apr 13
ABE
MAD
13h 29m
$1403
Trip: 15 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1544 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

SFO
AMS
Okay 5.0

Crew was very helpful.food

Food was not upto the mark.

AMS
ATL
Good 7.0

newer plane, good staff

need better and more food options, more often

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!

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, Mar 29
MAD
ABE
16h 20m
Mon, Apr 16
ABE
MAD
10h 25m
$1339
Trip: 19 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
LAX
AUS
Mediocre 2.0

We did not crash. Eventually we got to our destination.

All flights were awful. None were on time. I paid for economy plus aisle seat but was put in economy middle seat anyway. Asked for refund and was sent to 3 different people. The final person, a gate agent for my departing gate, Peggy Hunter, told me that she has 35 years experience and she knows everything about United Airlines’ processes. Told me the only way I might get a refund is to submit online but that paying extra for a seat upgrade doesn’t mean I will actually get one and that I should read the fine print on the ticket. Had previously spoken to another gate agent who had told me that I could ask for a refund at the departing gate. Wifi didn’t work. On one of three delayed flights had to beg for water to take my medicine. I will make extra efforts to avoid using this mediocre airline.

IAH
CUN
Excellent 8.3

being my first time flying international everything went smooth. The staff was very helpful.

This flight went smooth, I was very pleased with it.

IAH
LFT
Okay 4.0

Never made it and had to go yet to another desk because it was a united flight this was the worst i have ever experienced

EWR
AMS
Good 6.6

I ordered a special meal and it was delicious! Because I have dietary concerns, I often have to order a special meal. Usually, I find that the alternatives meals are second thoughts and thus can be rather tasteless. I was very thankful for my meal.

The plane was so tiny we were packed in it like sardines. I am a rather small person (barely 5 feet tall) and usually have no complaints about space on a flight but even my knees hit the back of the seat in front of me.

PVR
ORD
Excellent 8.0

Arrived earlier than expected.

Waited an hour for the gate to be vacate by another plane.

Sat, Mar 10
BCN
ABE
17h 49m
Sat, Mar 17
ABE
BCN
23h 20m
$1345
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Mar 31
MAD
ABE
18h 26m
Fri, Apr 13
ABE
MAD
13h 29m
$1403
Trip: 14 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 1544 reviews
Overall
8.0
Boarding
8.0
Comfort
7.7
Crew
8.5
Entertainment
7.2
Food
7.5
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!

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

JFK
AMS
Good 7.6

Two hours delay in the start.

ABZ
AMS
Excellent 10.0

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

Mon, Mar 26
MAD
ABE
15h 50m
Tue, Apr 17
ABE
MAD
10h 25m
$1346
Trip: 23 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAH
CUN
Excellent 8.3

being my first time flying international everything went smooth. The staff was very helpful.

This flight went smooth, I was very pleased with it.

PVR
ORD
Excellent 8.0

Arrived earlier than expected.

Waited an hour for the gate to be vacate by another plane.

LAX
AUS
Mediocre 2.0

We did not crash. Eventually we got to our destination.

All flights were awful. None were on time. I paid for economy plus aisle seat but was put in economy middle seat anyway. Asked for refund and was sent to 3 different people. The final person, a gate agent for my departing gate, Peggy Hunter, told me that she has 35 years experience and she knows everything about United Airlines’ processes. Told me the only way I might get a refund is to submit online but that paying extra for a seat upgrade doesn’t mean I will actually get one and that I should read the fine print on the ticket. Had previously spoken to another gate agent who had told me that I could ask for a refund at the departing gate. Wifi didn’t work. On one of three delayed flights had to beg for water to take my medicine. I will make extra efforts to avoid using this mediocre airline.

COS
DEN
Excellent 8.0

Nice staff, helpful front desk and flight attendants.

No wifi, carry on fee, small seats

ORD
SEA
Mediocre 2.0

The flight staff was rude, the wrong gas was put in the plane causing a delay, I missed my connection because of this where they wrote it was delayed because "it was snowing in Savannah" which was a blatant lie, but made it so they did not have to help me in any way since their delay was "weather" related. They could not get my to my destination until noon the next day which forced me to buy a new flight on Alaska air. My flight on Alaska was absolutely fantastic and I regret ever buying any United flight and will not in the future.

Fri, May 25
BCN
ABE
14h 26m
Wed, May 30
ABE
BCN
20h 05m
$1445
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 27
MAD
ABE
15h 50m
Mon, Apr 16
ABE
MAD
10h 25m
$1346
Trip: 21 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
SEA
Mediocre 2.0

The flight staff was rude, the wrong gas was put in the plane causing a delay, I missed my connection because of this where they wrote it was delayed because "it was snowing in Savannah" which was a blatant lie, but made it so they did not have to help me in any way since their delay was "weather" related. They could not get my to my destination until noon the next day which forced me to buy a new flight on Alaska air. My flight on Alaska was absolutely fantastic and I regret ever buying any United flight and will not in the future.

LAX
AUS
Mediocre 2.0

We did not crash. Eventually we got to our destination.

All flights were awful. None were on time. I paid for economy plus aisle seat but was put in economy middle seat anyway. Asked for refund and was sent to 3 different people. The final person, a gate agent for my departing gate, Peggy Hunter, told me that she has 35 years experience and she knows everything about United Airlines’ processes. Told me the only way I might get a refund is to submit online but that paying extra for a seat upgrade doesn’t mean I will actually get one and that I should read the fine print on the ticket. Had previously spoken to another gate agent who had told me that I could ask for a refund at the departing gate. Wifi didn’t work. On one of three delayed flights had to beg for water to take my medicine. I will make extra efforts to avoid using this mediocre airline.

ORD
CDG
Okay 4.0

Very helpful accommodating wife with wheelchair. Thank you.

The food was not tasty. Check in via kiosk was difficult for me, a senior citizen. Entertainment was very limited.

CUN
IAD
Excellent 10.0

On time

Nothing

COS
DEN
Excellent 8.0

Nice staff, helpful front desk and flight attendants.

No wifi, carry on fee, small seats

Sat, Mar 24
BCN
ABE
18h 59m
Sat, Mar 31
ABE
BCN
16h 00m
$1450
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Mar 28
MAD
ABE
16h 20m
Fri, Apr 13
ABE
MAD
10h 25m
$1360
Trip: 17 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
LAX
AUS
Mediocre 2.0

We did not crash. Eventually we got to our destination.

All flights were awful. None were on time. I paid for economy plus aisle seat but was put in economy middle seat anyway. Asked for refund and was sent to 3 different people. The final person, a gate agent for my departing gate, Peggy Hunter, told me that she has 35 years experience and she knows everything about United Airlines’ processes. Told me the only way I might get a refund is to submit online but that paying extra for a seat upgrade doesn’t mean I will actually get one and that I should read the fine print on the ticket. Had previously spoken to another gate agent who had told me that I could ask for a refund at the departing gate. Wifi didn’t work. On one of three delayed flights had to beg for water to take my medicine. I will make extra efforts to avoid using this mediocre airline.

PVR
ORD
Excellent 8.0

Arrived earlier than expected.

Waited an hour for the gate to be vacate by another plane.

CUN
IAD
Excellent 10.0

On time

Nothing

ORD
CDG
Okay 4.0

Very helpful accommodating wife with wheelchair. Thank you.

The food was not tasty. Check in via kiosk was difficult for me, a senior citizen. Entertainment was very limited.

COS
IAH
Good 6.6

I really like how your flights are inexpensive compared to others when trying to purchase a last minute ticket.

The last two times I traveled ( I flew with United Airlines ) and both times my flights were delayed. The first time it was delayed by 4 hours and made me miss an appointment. The second time it was delayed by over 13 hours. It was nice that United had put me in a hotel room for the night, but again it took away from time in which I needed to be somewhere else.

Thu, Mar 29
MAD
ABE
16h 20m
Fri, Apr 13
ABE
MAD
10h 25m
$1360
Trip: 16 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
ITO
LAX
Mediocre 2.0

See below

See below

ORD
SEA
Mediocre 2.0

The flight staff was rude, the wrong gas was put in the plane causing a delay, I missed my connection because of this where they wrote it was delayed because "it was snowing in Savannah" which was a blatant lie, but made it so they did not have to help me in any way since their delay was "weather" related. They could not get my to my destination until noon the next day which forced me to buy a new flight on Alaska air. My flight on Alaska was absolutely fantastic and I regret ever buying any United flight and will not in the future.

IAH
LFT
Okay 4.0

Never made it and had to go yet to another desk because it was a united flight this was the worst i have ever experienced

DEN
PSP
Good 6.6

Seats were incredibly uncomfortable. Why no food on a 4 hr+ flight?

EWR
AMS
Good 6.6

I ordered a special meal and it was delicious! Because I have dietary concerns, I often have to order a special meal. Usually, I find that the alternatives meals are second thoughts and thus can be rather tasteless. I was very thankful for my meal.

The plane was so tiny we were packed in it like sardines. I am a rather small person (barely 5 feet tall) and usually have no complaints about space on a flight but even my knees hit the back of the seat in front of me.

Mon, Mar 26
MAD
ABE
15h 50m
Sat, Apr 14
ABE
MAD
14h 30m
$1367
Trip: 20 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
CUN
IAD
Excellent 10.0

On time

Nothing

LAX
AUS
Mediocre 2.0

We did not crash. Eventually we got to our destination.

All flights were awful. None were on time. I paid for economy plus aisle seat but was put in economy middle seat anyway. Asked for refund and was sent to 3 different people. The final person, a gate agent for my departing gate, Peggy Hunter, told me that she has 35 years experience and she knows everything about United Airlines’ processes. Told me the only way I might get a refund is to submit online but that paying extra for a seat upgrade doesn’t mean I will actually get one and that I should read the fine print on the ticket. Had previously spoken to another gate agent who had told me that I could ask for a refund at the departing gate. Wifi didn’t work. On one of three delayed flights had to beg for water to take my medicine. I will make extra efforts to avoid using this mediocre airline.

ORD
CDG
Okay 4.0

Very helpful accommodating wife with wheelchair. Thank you.

The food was not tasty. Check in via kiosk was difficult for me, a senior citizen. Entertainment was very limited.

IAH
LFT
Okay 4.0

Never made it and had to go yet to another desk because it was a united flight this was the worst i have ever experienced

COS
IAH
Good 6.6

I really like how your flights are inexpensive compared to others when trying to purchase a last minute ticket.

The last two times I traveled ( I flew with United Airlines ) and both times my flights were delayed. The first time it was delayed by 4 hours and made me miss an appointment. The second time it was delayed by over 13 hours. It was nice that United had put me in a hotel room for the night, but again it took away from time in which I needed to be somewhere else.

Fri, Apr 13
BCN
ABE
20h 11m
Wed, Apr 18
ABE
BCN
14h 00m
$1676
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 27
MAD
ABE
15h 50m
Fri, Apr 13
ABE
MAD
10h 25m
$1367
Trip: 18 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
SEA
Mediocre 2.0

The flight staff was rude, the wrong gas was put in the plane causing a delay, I missed my connection because of this where they wrote it was delayed because "it was snowing in Savannah" which was a blatant lie, but made it so they did not have to help me in any way since their delay was "weather" related. They could not get my to my destination until noon the next day which forced me to buy a new flight on Alaska air. My flight on Alaska was absolutely fantastic and I regret ever buying any United flight and will not in the future.

CUN
IAD
Excellent 10.0

On time

Nothing

ORD
CDG
Okay 4.0

Very helpful accommodating wife with wheelchair. Thank you.

The food was not tasty. Check in via kiosk was difficult for me, a senior citizen. Entertainment was very limited.

COS
IAH
Good 6.6

I really like how your flights are inexpensive compared to others when trying to purchase a last minute ticket.

The last two times I traveled ( I flew with United Airlines ) and both times my flights were delayed. The first time it was delayed by 4 hours and made me miss an appointment. The second time it was delayed by over 13 hours. It was nice that United had put me in a hotel room for the night, but again it took away from time in which I needed to be somewhere else.

ITO
LAX
Mediocre 2.0

See below

See below

Fri, Mar 30
MAD
ABE
15h 50m
Mon, Apr 16
ABE
MAD
10h 25m
$1376
Trip: 18 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAH
CUN
Excellent 8.3

being my first time flying international everything went smooth. The staff was very helpful.

This flight went smooth, I was very pleased with it.

COS
IAH
Good 6.6

I really like how your flights are inexpensive compared to others when trying to purchase a last minute ticket.

The last two times I traveled ( I flew with United Airlines ) and both times my flights were delayed. The first time it was delayed by 4 hours and made me miss an appointment. The second time it was delayed by over 13 hours. It was nice that United had put me in a hotel room for the night, but again it took away from time in which I needed to be somewhere else.

PVR
ORD
Excellent 8.0

Arrived earlier than expected.

Waited an hour for the gate to be vacate by another plane.

COS
DEN
Excellent 8.0

Nice staff, helpful front desk and flight attendants.

No wifi, carry on fee, small seats

ORD
SEA
Mediocre 2.0

The flight staff was rude, the wrong gas was put in the plane causing a delay, I missed my connection because of this where they wrote it was delayed because "it was snowing in Savannah" which was a blatant lie, but made it so they did not have to help me in any way since their delay was "weather" related. They could not get my to my destination until noon the next day which forced me to buy a new flight on Alaska air. My flight on Alaska was absolutely fantastic and I regret ever buying any United flight and will not in the future.

Sun, Jan 7
BCN
ABE
19h 29m
Thu, Jan 11
ABE
BCN
14h 35m
$1843
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.