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

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Good to Know

Low Season:
February
Best time to beat the crowds
5%
expected price decrease
High Season:
September
Most popular time to fly
6%
expected price increase
Average Price:
$369
(avg. price over the last 2 weeks)
Good Deal:
$287
or less (round trip)

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

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 $287 or less.
The cheapest flight from San Juan Luis Munoz Marin International to Washington Dulles Intl was found 88 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be August, September and October. The cheapest month to fly is February.
Morning departure is around 42% 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 San Juan Luis Munoz Marin International to Washington Dulles Intl Flights

How long does a flight from San Juan Luis Munoz Marin International to Washington Dulles Intl take?
An average nonstop flight takes 4h 00m, covering a distance of 1575 miles.
How many flights are there between San Juan Luis Munoz Marin International and Washington Dulles Intl?
There are 68 (nonstop) flights between San Juan Luis Munoz Marin International and Washington Dulles Intl per week, averaging 10 per day.
Which airlines provide the cheapest flights from San Juan Luis Munoz Marin International to Washington Dulles Intl?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($188), Multiple Airlines ($223) and United ($257).
Do I need a passport to fly between San Juan Luis Munoz Marin International and Washington Dulles Intl?
Yes.
Which airlines fly most frequently between San Juan Luis Munoz Marin International and Washington Dulles Intl?
Air Canada (3 times daily), Brussels Airlines (3 times daily), United (3 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly San Juan Luis Munoz Marin International to Washington Dulles Intl?
For San Juan Luis Munoz Marin International to Washington Dulles Intl, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Washington Dulles Intl back to San Juan Luis Munoz Marin International, the best deals are generally found on Thursday, with Wednesday being the most expensive.

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

Airports
Origin
San Juan
$188
only
$188
Destination
Washington
$188
only
$188
Wed, Jan 31
SJU
IAD
9h 37m
Sat, Feb 10
IAD
SJU
10h 45m
Trip: 11 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
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.

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

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.

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.

Wed, Jan 31
SJU
IAD
9h 37m
Sun, Feb 4
IAD
SJU
3h 45m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Mar 24
SJU
IAD
4h 00m
Tue, Mar 27
IAD
SJU
3h 50m
Trip: 4 days
6.9GoodShow reviews
Overall 6.9 Good
Based on 37 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SJU
IAD
Good 7.3

Smooth ride

No drinks or snacks Well think it was only water or orange juice available

SJU
IAD
Excellent 8.0

The respect for the time and the organization to boarding

My baggage did not arrive to my destination

SJU
IAD
Okay 4.0

Liked that the airline paid the Hotel expense

Flight got cancelled for maintenance reasons but many other airlines did the flights that night

SJU
IAD
Good 6.3

Basically realized that I won’t fly again if it’s not first class .

When the flight attendant was serving the food, he hit my knee with the cart, I got mad of course because it made no sense that he was pushing the car from behind towards he back of a plane. That can’t happen. I can’t “seat back and relax “ if I need to be worried about getting my knee hurt.

SJU
IAD
Excellent 10.0

Staff was courteous polite. Pilot kept everyone informed. Smooth, relaxing flight!

Wed, Mar 14
SJU
IAD
6h 37m
Mon, Mar 19
IAD
SJU
6h 08m
Trip: 6 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
ATL
BWI
Okay 4.6

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

Older plane, no entertainment

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!

JFK
TPA
Good 6.6

We landed earlier than expected

Bathroom was very smelly

ATL
MEX
Excellent 8.3

Tudo conforme esperado em um voo da Delta.

Nada a reclamar.

MEX
ATL
Good 7.0

Beautiful plane, great entertainment system, two bathrooms for economy class, decent food

Fri, Feb 2
SJU
IAD
9h 37m
Sun, Feb 11
IAD
SJU
10h 45m
Trip: 10 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

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.

RDU
MCO
Mediocre 3.3

The dirt cheap, I can't believe an airline can operate at this low an airfare and still turn a profit-ticket prices

The hidden checked-baggage fees that were almost half the cost of the actual ticket for one bag. The non reclining seats. The lack of legroom. The feeling of cattle being herded into a slaughterhouse. The lack of friendliness with the RDU and MCO gate/ticket counter agents. The cost of having to pay $12 to ensure I sit beside my 5 year old son on the flight. Besides a free seat belt, having to pay for everything else under the sun. Surprised AC was free. Not even an in-flight magazine or barf bag. Which is exactly what I feel like doing after giving you my money......

IAD
MCO
Mediocre 2.0

Unorganized, confusing boarding, confusion with seating, unbelievable lines while checking bags. Literally the only redeeming factor was the price.

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

Thu, Feb 8
SJU
IAD
9h 37m
Mon, Feb 12
IAD
SJU
10h 45m
Trip: 5 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.

OMA
MCO
Excellent 8.0

Nice flight. Arrived early.

4.99 for a can of coke???

RDU
MCO
Mediocre 3.3

The dirt cheap, I can't believe an airline can operate at this low an airfare and still turn a profit-ticket prices

The hidden checked-baggage fees that were almost half the cost of the actual ticket for one bag. The non reclining seats. The lack of legroom. The feeling of cattle being herded into a slaughterhouse. The lack of friendliness with the RDU and MCO gate/ticket counter agents. The cost of having to pay $12 to ensure I sit beside my 5 year old son on the flight. Besides a free seat belt, having to pay for everything else under the sun. Surprised AC was free. Not even an in-flight magazine or barf bag. Which is exactly what I feel like doing after giving you my money......

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

SJC
LAS
Mediocre 2.0

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

The service

Tue, Apr 17
SJU
IAD
13h 35m
Wed, Apr 18
IAD
SJU
13h 55m
Trip: 2 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Feb 14
SJU
IAD
9h 37m
Tue, Feb 20
IAD
SJU
10h 45m
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
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.

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.

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.

SJC
LAS
Mediocre 2.0

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

The service

OMA
MCO
Excellent 8.0

Nice flight. Arrived early.

4.99 for a can of coke???

Mon, Mar 5
SJU
IAD
9h 58m
Wed, Mar 14
IAD
SJU
10h 17m
Trip: 9 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
IAD
MCO
Mediocre 2.0

Unorganized, confusing boarding, confusion with seating, unbelievable lines while checking bags. Literally the only redeeming factor was the price.

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.

ONT
AUS
Excellent 9.5

The crew were kind and efficient and the planes were clean and well maintained.

No entertainment on the flights, but that is to be expected for the price.

Mon, Mar 26
SJU
IAD
4h 00m
Thu, Mar 29
IAD
SJU
3h 50m
Trip: 4 days
6.9GoodShow reviews
Overall 6.9 Good
Based on 37 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SJU
IAD
Okay 4.6

Seats were very uncomfortable

SJU
IAD
Excellent 10.0

Staff was courteous polite. Pilot kept everyone informed. Smooth, relaxing flight!

SJU
IAD
Good 6.0

Free dish movies provided due to flight delays

Flight delayed over 5 hours.

SJU
IAD
Okay 4.0

Liked that the airline paid the Hotel expense

Flight got cancelled for maintenance reasons but many other airlines did the flights that night

SJU
IAD
Excellent 8.6

Crew was nice and very helpful.

Thu, Jul 19
SJU
IAD
8h 34m
Wed, Jul 25
IAD
SJU
8h 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
LAX
DEN
Excellent 10.0

Excellent piloting and cabin crew.

ATL
MEX
Excellent 8.3

Tudo conforme esperado em um voo da Delta.

Nada a reclamar.

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.

MEX
ATL
Good 7.0

Beautiful plane, great entertainment system, two bathrooms for economy class, decent food

Tue, May 8
SJU
IAD
13h 05m
Tue, May 15
IAD
SJU
6h 59m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Apr 3
SJU
IAD
9h 58m
Wed, Apr 11
IAD
SJU
13h 17m
Trip: 9 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
SJC
LAS
Mediocre 2.0

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

The service

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.

ONT
AUS
Excellent 9.5

The crew were kind and efficient and the planes were clean and well maintained.

No entertainment on the flights, but that is to be expected for the price.

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.

RDU
MCO
Mediocre 3.3

The dirt cheap, I can't believe an airline can operate at this low an airfare and still turn a profit-ticket prices

The hidden checked-baggage fees that were almost half the cost of the actual ticket for one bag. The non reclining seats. The lack of legroom. The feeling of cattle being herded into a slaughterhouse. The lack of friendliness with the RDU and MCO gate/ticket counter agents. The cost of having to pay $12 to ensure I sit beside my 5 year old son on the flight. Besides a free seat belt, having to pay for everything else under the sun. Surprised AC was free. Not even an in-flight magazine or barf bag. Which is exactly what I feel like doing after giving you my money......

Thu, Jun 14
SJU
IAD
4h 05m
Sun, Jun 17
IAD
SJU
17h 30m
Trip: 4 days
6.9GoodShow reviews
Overall 6.9 Good
Based on 37 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SJU
IAD
Good 6.0

Free dish movies provided due to flight delays

Flight delayed over 5 hours.

SJU
IAD
Okay 4.6

Seats were very uncomfortable

SJU
IAD
Excellent 10.0

I was upgraded to first class. This was the first time this has happened to me, and I was excited. I had a great experience there and am grateful for it! The trip was quick, with low turbulence and no air pockets. I felt good. Thanks.

SJU
IAD
Excellent 8.6

Crew was nice and very helpful.

SJU
IAD
Good 6.3

Basically realized that I won’t fly again if it’s not first class .

When the flight attendant was serving the food, he hit my knee with the cart, I got mad of course because it made no sense that he was pushing the car from behind towards he back of a plane. That can’t happen. I can’t “seat back and relax “ if I need to be worried about getting my knee hurt.

Tue, May 15
SJU
IAD
8h 39m
Tue, May 22
IAD
SJU
8h 23m
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
DFW
LGA
Excellent 10.0

Good service, more leg room than American Airlines.

Everything was good.

LAX
DEN
Excellent 10.0

Excellent piloting and cabin crew.

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.

MEX
ATL
Good 7.0

Beautiful plane, great entertainment system, two bathrooms for economy class, decent food

ATL
MEX
Excellent 8.3

Tudo conforme esperado em um voo da Delta.

Nada a reclamar.

Fri, Apr 6
SJU
IAD
4h 00m
Mon, Apr 9
IAD
SJU
3h 50m
Trip: 4 days
6.9GoodShow reviews
Overall 6.9 Good
Based on 37 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SJU
IAD
Okay 4.6

Seats were very uncomfortable

SJU
IAD
Excellent 8.0

The respect for the time and the organization to boarding

My baggage did not arrive to my destination

SJU
IAD
Excellent 8.6

Crew was nice and very helpful.

SJU
IAD
Mediocre 2.0

The flight was delayed and we have to pay for the entertainment what it's that One of flight attendant was getto, saying bad words and unhelpful The guy at the gate unhelpful in other airlines if my family and I have seats away from each other they will help you to be together specially if you have children. In united the guy didn't even bother to look in the system and just told me that that's the only thing he has I asked again and he's told me no because if he help me the flight will be delayed and I laugh and then I said are u serious so I told him that the only thing that he needs to do it's to call the person that has the seat next to my family and ask if he or she can switch seats with me that's all and he just walked away. Very unprofessional most of the staff. I'm a ARMY VETERAN 90% disabled and my wife ssg Ayala active duty the flights that we took on our deployments were smoother than the united airlines flights

SJU
IAD
Good 7.3

Smooth ride

No drinks or snacks Well think it was only water or orange juice available

Sun, Apr 1
SJU
IAD
7h 22m
Tue, Apr 3
IAD
SJU
3h 50m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Show more results

San Juan Luis Munoz Marin International to Washington Dulles Intl Flight Information

Avg. Flight Duration 3h 55m
Flights Arrive in Washington Dulles Intl
Flights Depart from San Juan Luis Munoz Marin International
Flight Price $188
Distance 1575 miles
Airlines Frontier, United, Delta
*
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.

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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.

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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.