Find Cheap Flights from Washington to San Juan Luis Munoz Marin International (WAS - SJU)

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Good to Know

Low Season:
October
Best time to beat the crowds
3%
expected price decrease
High Season:
December
Most popular time to fly
7%
expected price increase
Average Price:
$1263
(avg. price over the last 2 weeks)
Good Deal:
$961
or less (round trip)

When to Book Flights from Washington to San Juan Luis Munoz Marin International

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $960 or less.
The cheapest flight from Washington to San Juan Luis Munoz Marin International was found 25 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
Morning departure is around 1% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Washington to San Juan Luis Munoz Marin International Flights

How long does a flight from Washington to San Juan Luis Munoz Marin International take?
An average nonstop flight takes 3h 40m, covering a distance of 1561 miles.
How many flights are there between Washington and San Juan Luis Munoz Marin International?
There are 66 (nonstop) flights between Washington and San Juan Luis Munoz Marin International per week, averaging 9 per day.
Which airlines provide the cheapest flights from Washington to San Juan Luis Munoz Marin International?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($223), JetBlue ($246) and United ($257).
Do I need a passport to fly between Washington and San Juan Luis Munoz Marin International?
Yes.
Which airlines fly most frequently between Washington and San Juan Luis Munoz Marin International?
Southwest (3 times daily), Air Canada (2 times daily), United (2 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Washington to San Juan Luis Munoz Marin International?
For Washington to San Juan Luis Munoz Marin International, Thursday is the cheapest day to fly on average and Saturday is the most expensive. Flying from San Juan Luis Munoz Marin International back to Washington, the best deals are generally found on Wednesday, with Tuesday being the most expensive.

Book cheap flights from Washington to San Juan Luis Munoz Marin International (round-trip)

Airports
Origin
Washington
$223
only
$223
$246
only
$246
Destination
San Juan
$223
only
$223
Thu, Feb 1
IAD
SJU
10h 45m
Sat, Feb 3
SJU
IAD
3h 55m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Feb 13
DCA
SJU
3h 46m
Sat, Feb 17
SJU
DCA
10h 00m
Trip: 5 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 9 reviews
Overall
8.2
Boarding
8.2
Comfort
8.3
Crew
8.6
Entertainment
8.0
Food
7.8
BOS
DTW
Mediocre 2.0

Normally I don’t complain, but from the jump this flight was a nightmare. I fly JB all the time but this time was not nearly as enjoyable. I asked my attendant 2 times to buy headphones. She never brought them and maybe she forgot but She sat in the front on her phone the whole flight which was just irritating. After being delayed (for no apparent reason) Then having to sit for 20+ minutes because of a “jet bridge that’s too cold” (aren’t these made for the out doors?) this JB flight was less than satisfactory.

PBI
JFK
Good 7.6

Baggage was lost and no one seemed to know where it went. But then it turned up in my hotel a few hours later so at least it got worked out.

DCA
SJU
Excellent 10.0

The confort

Everything was perfect

BOS
LGA
Excellent 10.0

Free beer!

Nothing, it was excellent!

BOS
LGB
Excellent 10.0

Stewards were attentive and if needed extra they got it for you. Flight was clean and the legroom makes a big difference then the major carries legroom which is nothin. And the fact we took of a few minutes late but arrived exactly 48 minutes early was a big surprise after the cross country flight.

We loved anything. Direct TV was down on flight but still had one channel of XM and three movies that were just in studios. So was able to watch two movies to pass time.

Fri, Feb 2
IAD
SJU
3h 45m
Tue, Feb 6
SJU
IAD
3h 55m
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IND
Okay 4.6

Crew was very kind and apologetic for delay.

Delayed 2 hours and forced to deboard when I can drive in 3 hours.

IAD
CDG
Excellent 10.0

Got a window seat and had an amazing crew. Everything went smoothly! Dinner and breakfast served!

Everything was perfect!

IAD
SJU
Excellent 10.0

The personal are very amability

IAD
SJU
Okay 5.6

Their system canceled (it auto confused itself) my tickets and we almost lost the flight. Good thing I'm always 4 hours earlier or else their juggling of seats would have been impossible.

IAD
SJU
Good 7.6

Very nice breakfast provided. Staff was great.

No media entertainment for 3.5 hour flight

Mon, Jun 4
DCA
SJU
9h 59m
Tue, Jun 5
SJU
DCA
9h 39m
Trip: 2 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 27375 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
KOA
LAX
Excellent 10.0

Boarded in a timely manner.

JFK
LHR
Excellent 9.6

Timely. Plane on time. Crew very friendly and helpful

DFW
CVG
Good 7.0

I liked that we were given cookies with our drinks that was a nice touch. I also enjoyed that it was a very quick flight from Dallas to Cincinnati. Shout out to the crew members, they work really hard to help us feel comfortable.

The sound of the turbo engine in the beginning made my head feel really dizzy, but the buzzing went away after a while. Other than that, I think that the tiny planes should still have some sort of entertainment, even if it's just a single movie playing for all to watch.

MIA
BOS
Good 7.3

No entertainment, nor food

ELP
PHX
Okay 5.3

Roomy seats

Long wait for clearance

Wed, Feb 14
IAD
SJU
9h 04m
Tue, Feb 20
SJU
IAD
6h 23m
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 15342 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
DFW
LGA
Excellent 10.0

Good service, more leg room than American Airlines.

Everything was good.

RDU
LAX
Excellent 8.4

Punctual departures. Adequate overheard space.

Food was mediocre for a 5-6 hour flight. I expected a little bit more.

ATL
MBJ
Excellent 8.0

I love Delta, especially their newer planes that have screens in the backs of headrests and free movies.

Leg room is never enough. I'm 6'1".

ATL
BWI
Okay 4.6

Snacks & beverages on a 1 hour flight. Very nice crew

Older plane, no entertainment

DTW
ATL
Excellent 8.0

I love Delta, especially their newer planes that have screens in the backs of headrests and free movies.

Leg room is never enough. I'm 6'1".

Thu, Apr 19
IAD
SJU
13h 17m
Mon, Apr 30
SJU
IAD
13h 05m
Trip: 12 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33594 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DCA
DEN
Okay 4.0

The crew was really nice.

So many delays. My flight was eventually cancelled on Friday and was rescheduled for Saturday. The Saturday flight was delayed. All in all, i wasted a vacation day on Friday, I paid for a hotel in Denver for Friday night that I was not able to get refunded, I missed out on a day in Denver. It was a huge bummer.

MIA
LGA
Mediocre 2.0

if you have a hard engagement that you have to make, i hate to say it, but use a bigger airline. These guys are not dependable nyc -> miami. Have had 2 flights cancelled and delayed over 6 hours in the last 6 months. Only one scheduled flight everyday. If you can risk it, fine, but otherwise not worth it.

SJC
LAS
Mediocre 2.0

couldn't change my reservation even though I made it less than 24 hours

The service

DEN
RNO
Excellent 8.6

Easy flight with good price.

No one takes cash anymore! Have to pay for all snacks! Not alot of room for broad shoulders.

MCI
TPA
Excellent 8.3

Crew was ameable and helpful.

A passenger that was intoxicated and incredibly loud. It was ok though, she was on her way to a cruise.

Thu, Mar 1
IAD
SJU
3h 45m
Mon, Mar 5
SJU
IAD
3h 55m
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
IND
Okay 4.6

Crew was very kind and apologetic for delay.

Delayed 2 hours and forced to deboard when I can drive in 3 hours.

IAD
SJU
Good 7.6

Very nice breakfast provided. Staff was great.

No media entertainment for 3.5 hour flight

IAD
SJU
Excellent 10.0

Good trip

Nothing

IAD
SJU
Excellent 10.0

The personal are very amability

IAD
SJU
Excellent 10.0

When the lady in the gate saw me almost dying of running all over the airport with my suitcase, she was very nice and comfort me.

Nothing

Fri, Apr 13
DCA
SJU
3h 40m
Tue, Apr 17
SJU
DCA
3h 58m
Trip: 5 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 9 reviews
Overall
8.2
Boarding
8.2
Comfort
8.3
Crew
8.6
Entertainment
8.0
Food
7.8
BOS
DTW
Mediocre 2.0

Normally I don’t complain, but from the jump this flight was a nightmare. I fly JB all the time but this time was not nearly as enjoyable. I asked my attendant 2 times to buy headphones. She never brought them and maybe she forgot but She sat in the front on her phone the whole flight which was just irritating. After being delayed (for no apparent reason) Then having to sit for 20+ minutes because of a “jet bridge that’s too cold” (aren’t these made for the out doors?) this JB flight was less than satisfactory.

BOS
LGB
Excellent 10.0

Stewards were attentive and if needed extra they got it for you. Flight was clean and the legroom makes a big difference then the major carries legroom which is nothin. And the fact we took of a few minutes late but arrived exactly 48 minutes early was a big surprise after the cross country flight.

We loved anything. Direct TV was down on flight but still had one channel of XM and three movies that were just in studios. So was able to watch two movies to pass time.

RDU
FLL
Excellent 10.0

Amazing staff at the ticketing counter. Very pleasant and patient.

DCA
SJU
Good 6.0

Flight was on time.

Sound for entertainment system in a lot of Jetblue flights as in this one works poorly. Paying for luggage is annoying.

PBI
JFK
Good 7.6

Baggage was lost and no one seemed to know where it went. But then it turned up in my hotel a few hours later so at least it got worked out.

Wed, Mar 21
DCA
SJU
3h 40m
Tue, Mar 27
SJU
DCA
6h 08m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jul 3
IAD
SJU
8h 22m
Tue, Jul 10
SJU
IAD
6h 55m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 15342 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
DTW
ATL
Excellent 8.0

I love Delta, especially their newer planes that have screens in the backs of headrests and free movies.

Leg room is never enough. I'm 6'1".

LGA
PIT
Excellent 10.0

Our original flight was delayed and Marika, at the Delta gate of another flight to the same city, was able to get us on the flight that was going to our city. We were so grateful to get home before the winter storm! We appreciate your staff and the help their quick, efficient manner to get us on a new flight!

ATL
BWI
Okay 4.6

Snacks & beverages on a 1 hour flight. Very nice crew

Older plane, no entertainment

ATL
MEX
Excellent 8.3

Tudo conforme esperado em um voo da Delta.

Nada a reclamar.

LAX
DEN
Excellent 10.0

Excellent piloting and cabin crew.

Sat, Jan 27
IAD
SJU
10h 45m
Fri, Feb 2
SJU
IAD
9h 37m
Trip: 7 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33594 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MKE
PHX
Mediocre 3.0

Service was awful. Delayed for more than 8hrs without an explanation of what type of maintenance issues were happening. Never given a straight answer as to what was happening. Food vouchers were only offered after the airport restaurants had closed. Once the plane was finished the crew had timed out and we could not leave till the following afternoon. Ended up being put up in a hotel for the night and lost an entire day of our weekend get away. Poor contingency planning on frontiers part. There was no reason

MCI
TPA
Excellent 8.3

Crew was ameable and helpful.

A passenger that was intoxicated and incredibly loud. It was ok though, she was on her way to a cruise.

SJC
LAS
Mediocre 2.0

couldn't change my reservation even though I made it less than 24 hours

The service

DEN
RNO
Excellent 8.6

Easy flight with good price.

No one takes cash anymore! Have to pay for all snacks! Not alot of room for broad shoulders.

ATL
LAS
Good 6.0

The crew was very friendly.

The seats were close together and not very comfortable. No entertainment, for example a movie for a 4 hour flight. You have to pay for everything. Only thing complimentary is water.

Fri, Mar 2
IAD
SJU
3h 45m
Mon, Mar 5
SJU
IAD
3h 55m
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
SJU
Mediocre 2.0

I never took this flight since the San Francisco flight got delayed that when I got to the gate to board the Washington flight. The gates closed on my face literally. Awesome trip.! (Sarcasm included)

IAD
SJU
Excellent 8.0

Services , on time

IAD
SJU
Excellent 10.0

Everything! My grandparents needed special assistance with wheelchair and the crew was very helpful! They spoke Spanish and they were able to get a crew member to translate

ORD
IND
Okay 4.6

Crew was very kind and apologetic for delay.

Delayed 2 hours and forced to deboard when I can drive in 3 hours.

IAD
CDG
Excellent 10.0

Got a window seat and had an amazing crew. Everything went smoothly! Dinner and breakfast served!

Everything was perfect!

Fri, Apr 20
DCA
SJU
3h 40m
Sat, Apr 28
SJU
DCA
3h 58m
Trip: 9 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 9 reviews
Overall
8.2
Boarding
8.2
Comfort
8.3
Crew
8.6
Entertainment
8.0
Food
7.8
DCA
SJU
Good 6.6

Flight was cancelled. When tried to reschedule diferencia flight wouldn't let me reserve seats. Got bad seats in counter. The lady was mean the changed gates at very last minute. It got delayed.

RDU
FLL
Excellent 10.0

Amazing staff at the ticketing counter. Very pleasant and patient.

PBI
JFK
Good 7.6

Baggage was lost and no one seemed to know where it went. But then it turned up in my hotel a few hours later so at least it got worked out.

BOS
LGA
Excellent 10.0

Free beer!

Nothing, it was excellent!

DCA
SJU
Excellent 10.0

The crew was outstanding.

Wed, Mar 28
DCA
SJU
9h 35m
Wed, Apr 4
SJU
DCA
3h 58m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Jul 5
IAD
SJU
8h 22m
Mon, Jul 16
SJU
IAD
6h 55m
Trip: 12 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 15342 reviews
Overall
8.0
Boarding
8.1
Comfort
7.7
Crew
8.4
Entertainment
7.5
Food
7.3
DFW
LGA
Excellent 10.0

Good service, more leg room than American Airlines.

Everything was good.

JFK
TPA
Good 6.6

We landed earlier than expected

Bathroom was very smelly

DTW
ATL
Excellent 8.0

I love Delta, especially their newer planes that have screens in the backs of headrests and free movies.

Leg room is never enough. I'm 6'1".

ATL
MBJ
Excellent 8.0

I love Delta, especially their newer planes that have screens in the backs of headrests and free movies.

Leg room is never enough. I'm 6'1".

ATL
MEX
Excellent 8.3

Tudo conforme esperado em um voo da Delta.

Nada a reclamar.

Wed, Jan 31
IAD
SJU
10h 45m
Mon, Feb 5
SJU
IAD
9h 37m
Trip: 6 days
5.7OkayShow reviews
Overall 5.7 Okay
Based on 33594 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
CLE
MCO
Mediocre 2.3

enough space to move around

I dislike that once I got to the airport in Cleveland before boarding schools go to Orlando they charge me $45 for a suitcase that if I would have painted with my ticket it would have been $25 and that's what it told me I had to pay at the airport if I wasn't going to pay it with my ticket it was only $25 not $45 so they charge me $45 and then when I went to board the plane to go in they tried to charge me $45 for a backpack that fits under the seat and wasn't a carry on then they charge like $3 for a can of soda I don't think I'll ever recommend Frontier to anyone or I would never travel again with them that is ridiculous being a disabled person and being taken advantage of is unacceptable

MKE
PHX
Mediocre 3.0

Service was awful. Delayed for more than 8hrs without an explanation of what type of maintenance issues were happening. Never given a straight answer as to what was happening. Food vouchers were only offered after the airport restaurants had closed. Once the plane was finished the crew had timed out and we could not leave till the following afternoon. Ended up being put up in a hotel for the night and lost an entire day of our weekend get away. Poor contingency planning on frontiers part. There was no reason

MCI
TPA
Excellent 8.3

Crew was ameable and helpful.

A passenger that was intoxicated and incredibly loud. It was ok though, she was on her way to a cruise.

ATL
LAS
Good 6.0

The crew was very friendly.

The seats were close together and not very comfortable. No entertainment, for example a movie for a 4 hour flight. You have to pay for everything. Only thing complimentary is water.

DEN
RNO
Excellent 8.6

Easy flight with good price.

No one takes cash anymore! Have to pay for all snacks! Not alot of room for broad shoulders.

Wed, Mar 21
IAD
SJU
3h 45m
Wed, Mar 28
SJU
IAD
4h 00m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
CDG
Excellent 10.0

Got a window seat and had an amazing crew. Everything went smoothly! Dinner and breakfast served!

Everything was perfect!

IAD
SJU
Excellent 10.0

The personal are very amability

ORD
IND
Okay 4.6

Crew was very kind and apologetic for delay.

Delayed 2 hours and forced to deboard when I can drive in 3 hours.

IAD
SJU
Excellent 10.0

When the lady in the gate saw me almost dying of running all over the airport with my suitcase, she was very nice and comfort me.

Nothing

IAD
SJU
Mediocre 2.0

I never took this flight since the San Francisco flight got delayed that when I got to the gate to board the Washington flight. The gates closed on my face literally. Awesome trip.! (Sarcasm included)

Fri, Apr 27
DCA
SJU
3h 40m
Sat, May 5
SJU
DCA
3h 47m
Trip: 9 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 9 reviews
Overall
8.2
Boarding
8.2
Comfort
8.3
Crew
8.6
Entertainment
8.0
Food
7.8
DCA
SJU
Excellent 10.0

The confort

Everything was perfect

FLL
LGA
Excellent 10.0

Ticket prices were very affordable. Check in was quick, smooth & easy. Flight was on time. I loved the leg room, the fact that snacks are unlimited & the crew was just super courteous.

That my tv & wifi did not work properly on my return flight

DCA
SJU
Good 6.6

Flight was cancelled. When tried to reschedule diferencia flight wouldn't let me reserve seats. Got bad seats in counter. The lady was mean the changed gates at very last minute. It got delayed.

PBI
JFK
Good 7.6

Baggage was lost and no one seemed to know where it went. But then it turned up in my hotel a few hours later so at least it got worked out.

DCA
SJU
Excellent 10.0

The crew was outstanding.

Sun, Jun 3
DCA
SJU
3h 49m
Mon, Jun 11
SJU
DCA
6h 46m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Apr 14
IAD
SJU
3h 50m
Sat, Apr 21
SJU
IAD
4h 00m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 26 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
SJU
Excellent 10.0

When the lady in the gate saw me almost dying of running all over the airport with my suitcase, she was very nice and comfort me.

Nothing

IAD
SJU
Mediocre 2.0

I never took this flight since the San Francisco flight got delayed that when I got to the gate to board the Washington flight. The gates closed on my face literally. Awesome trip.! (Sarcasm included)

IAD
SJU
Excellent 8.0

Services , on time

IAD
SJU
Okay 5.6

Their system canceled (it auto confused itself) my tickets and we almost lost the flight. Good thing I'm always 4 hours earlier or else their juggling of seats would have been impossible.

IAD
SJU
Excellent 10.0

The personal are very amability

Show more results

Washington to San Juan Luis Munoz Marin International Flight Information

Avg. Flight Duration 3h 49m
Flights Arrive in San Juan Luis Munoz Marin International
Flights Depart from Washington
Flight Price $223
Distance 1561 miles
Airlines JetBlue, United, American Airlines, Delta, Frontier
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

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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.