$203 Find Cheap Flights from Washington Dulles Airport to Los Cabos

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Los Cabos departing on 5/2. 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 Los Cabos

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Los Cabos, 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 Washington, D.C. to Los Cabos, as well as popular online travel agencies
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Book Cheap Dulles Intl to Los Cabos Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Los Cabos 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 Dulles Intl to Los Cabos

Sun, May 3 - Fri, May 8
Aeromexico Logo
5:00 pm - 9:01 am
IAD
-
SJD
19h 01m
1 stop
Aeromexico Logo
6:44 pm - 3:04 pm
SJD
-
IAD
17h 20m
1 stop
$435Aeromexico
Tue, Apr 14 - Wed, Apr 15
Aeromexico Logo
6:00 am - 10:28 pm
IAD
-
SJD
19h 28m
2 stops
Aeromexico Logo
7:01 pm - 3:10 pm
SJD
-
IAD
17h 09m
1 stop
$440Aeromexico
Fri, Apr 10 - Wed, Apr 15
Delta Logo
7:20 am - 1:55 pm
IAD
-
SJD
9h 35m
1 stop
Delta Logo
6:01 am - 8:52 pm
SJD
-
IAD
11h 51m
2 stops
$450Delta
Tue, Apr 14 - Wed, Apr 15
Aeromexico Logo
7:06 am - 5:49 pm
IAD
-
SJD
13h 43m
2 stops
Aeromexico Logo
7:01 pm - 3:10 pm
SJD
-
IAD
17h 09m
1 stop
$460Aeromexico
Fri, Apr 17 - Mon, Apr 20
Alaska Airlines Logo
6:22 pm - 11:34 am
IAD
-
SJD
20h 12m
1 stop
Alaska Airlines Logo
10:40 am - 5:22 pm
SJD
-
IAD
27h 42m
1 stop
$461Alaska Airlines
Mon, Apr 6 - Wed, Apr 15
United Airlines Logo
6:00 am - 10:30 am
IAD
-
SJD
7h 30m
1 stop
United Airlines Logo
1:02 pm - 5:56 am
SJD
-
IAD
13h 54m
1 stop
$470United Airlines
Thu, Apr 16 - Tue, Apr 21
American Airlines Logo
8:11 pm - 12:50 pm
IAD
-
SJD
19h 39m
2 stops
American Airlines Logo
12:41 pm - 8:49 am
SJD
-
IAD
17h 08m
2 stops
$475American Airlines
Thu, May 28 - Thu, Jun 11
Aeromexico Logo
3:08 pm - 9:31 am
IAD
-
SJD
21h 23m
2 stops
Aeromexico Logo
6:55 pm - 3:10 pm
SJD
-
IAD
17h 15m
1 stop
$482Aeromexico
Tue, Apr 14 - Wed, Apr 15
Aeromexico Logo
3:00 pm - 9:32 am
IAD
-
SJD
21h 32m
2 stops
Aeromexico Logo
7:01 pm - 3:10 pm
SJD
-
IAD
17h 09m
1 stop
$486Aeromexico
Thu, May 7 - Tue, May 12
Multiple Airlines Logo
6:47 pm - 11:44 am
IAD
-
SJD
19h 57m
1 stop
Multiple Airlines Logo
2:15 pm - 11:09 pm
SJD
-
IAD
29h 54m
3 stops
$490Multiple Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to Los Cabos flights

Get data-powered insights and trends into flights from Dulles Intl to Los Cabos to help you find the cheapest flights, the best time to fly and much more.

Can I save money by flying with a layover from Washington, D.C. Dulles Intl Airport to Los Cabos?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $489, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Los Cabos?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Los Cabos, 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 Washington, D.C. Dulles Intl Airport to Los Cabos is September, when tickets cost $459 (return) on average. On the other hand, the most expensive months are June and February, when the average cost of round-trip tickets is $643 and $588 respectively.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Los Cabos?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Los Cabos, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Los Cabos, you should book around 2 weeks before departure, which saves you about 7% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonJuly
Cheapest flight$203
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Washington Dulles Airport to San José del Cabo

FAQs - booking Los Cabos flights

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Los Cabos?

    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 Washington Dulles Airport to Los Cabos.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Los Cabos?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Washington Dulles Airport to Los Cabos 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 Washington Dulles Airport to Los Cabos?

    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 from Washington Dulles Airport to Los Cabos with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Los Cabos?

    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 from Washington Dulles Airport to Los Cabos up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Dulles Intl to Los Cabos

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Los Cabos. 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 Dulles Intl to Los Cabos? 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 8293 reviews
7.9Comfort
8.5Crew
7.2Food
7.8Entertainment
8.1Boarding
Airline reviews

8 hours late and the plane smelled like urine, that smell in the morning when your child wet the bed in the night.

2.0 MediocreDouglas, Mar 2026
MSP - SEA
Read more Delta reviews

8 hours late and the plane smelled like urine, that smell in the morning when your child wet the bed in the night.

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.

Miserable. This entire round trip was miserable. I booked evening flights to and from Detroit on consecutive days that should have had me at my destination by 10:30. Instead I arrived after 3am on my flight to Detroit and after midnight on my return. Multiple unforced errors like awaiting bags to get put on the plane for almost an hour in Detroit and a 20 minute delay to pull up to the gate in Atlanta has me rethinking my assumption that delta is the best and most reliable airline

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

With Aeromexico it ended up good but with Delta it was bad because we did everything through Delta... Showed up at the Delta terminal... It was the wrong place! Nothing ever told us to go to the Aeromexico terminal. It said "in partnership with Aeromexico" but I was never instructed to check in with them or go to their terminal. We had to haul @$$ running through the airport and almost didn't make it thanks to this poor communication. 👎🏽

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Sat next to a one year old. She crawled all over the place and made me laugh.

The Crew and the food was the worst I ever had in Business Class. First they told us there were no space for carry on. It was plenty of space over our 2 row seats, we had to ask to let us travel with it which was accepted. They were aware that we had to run for the connection due to the previous flight delay. Have us one hour waiting for more customers and not even offer a glass of water. Then started the service and they started to serve other passengers drinks in business and did not offer any drinks until they serve our pre ordered meal and I ask for something to drink. I had to wait until they finished to serve all passengers until Inget something. The crew was the worts I ever had for Business Class in my life.

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

All went very well. We used the AIFI Airport, such a lovely facility. Definitely needs better transportation options to get there.

Both ground crew and flight crew were rude, and did not provide any level of service. They made it very difficult as we were traveling with a passenger the required assistance.

From the check-in, to the flight, and arriving, everything went very smoothly. Unfortunately, when I received my baggage it was severely damaged. I have a hard shelled suitcase and it was completely smashed it. I’m not sure how this could happened but I am extremely disappointed that my belongings were damaged beyond repair and continued use.

Really nice, all good, nice crew and all on time

Unfortunately I had an awful boarding experience. Our first flight with Aeromexico was fine and landed on time however it couldn’t find a gate and we were late which made us lose our connecting flight with Aeromexico. The staff handled it horribly when we explained our situation and would not led us board when we missed the boarding time by a couple minutes. The staff were extremely rude and did not attempt to even help us. Because of this incident, my husband and I missed a full day of work which negatively impacted our salary which we need. Please compensate us for the work that we missed.

It was OK. The flight is pretty long for the airlines to only offer a simple sandwich on business class. The entertainment is similar to that on other Skyteam members. Ultimately the airline lost my bag and didn’t deliver it to me until the next day after a lengthy lost baggage report.

Good, the flight from Miami to Mexico City was better than Mexico City to Miami

Aeroméxico cancelled my ticket without advice AND It make a last minute mess in my intinerary, no solving my situation, bad advice and bad customer service

It was good in general. The Crew during the flight were very nice at all times.

The ground staff were not as friendly and nice to the passengers as the air crew. Flight attendants, cockpit crew were great and very nice to everyone on board.

Flight delay for mechanical. Inbound arrived on time. No one said why mechanical delay.

Flight boarded, departed and landed on time. Excellent service from flight attendant in FIRST

Broke my luggage and I can't get a resolution yet.

This was one of the most frustrating travel experiences I've had to date. I had changed my flight day of to this one as it was slated to depart on time. It ended up being so delayed that my original flight took off before this one did. The boarding process began but eventually stopped and everyone had to get off the plane as a problem was identified. The person at the front desk just tried to laugh it off as if this wasn't already a huge inconvenience. From there, we eventually got to board only to sit at the gate for an additional hour because of some additional issue. This was extremely frustrating and caused a lot of stress.

It was a little concerning to hear the ground crew arguing with the flight crew over baggage space. Instead of taking them and checking them, they started checking for space in the first class cabin moving items around like the flight crew didn't know what they were doing. I was embarrassed for them.

There were no TV screens - even in Business class. 5 delays, and only given $12 meal voucher! Terrible!

The professionals have excellent customer service, the seats don´t have enough space.

The flight was very smooth and the meal in business class was great.

delayed due to weather. Could not communicate with family since the wifi was broken

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

Everything you need to know for your flight to Los Cabos

Information on your arrival and departure airports