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Cabo San Lucas

$159+ Cheap flights from Dulles Intl (IAD) to Cabo San Lucas, Mexico

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJD
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Cabo San Lucas are usually found in September or October, booked 47 days in advance, depart on a Monday or Saturday and return on a Monday

Find flight deals from Dulles Intl to Cabo San Lucas

Cheapest flights from Dulles Intl to Cabo San Lucas
Explore the most affordable flight options available from Dulles Intl to Cabo San Lucas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This American Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/148:05 pmIAD - SJD
2 stops18h 34mAmerican Airlines
Sun 12/211:16 pmSJD - IAD
2 stops17h 26mAmerican Airlines
Deal found 11/2$404
This Kiwi.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/105:37 pmIAD - SJD
2 stops19h 33mMultiple Airlines
Tue 12/161:15 pmSJD - IAD
1 stop8h 57mMultiple Airlines
Deal found 11/2$407
This American Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/175:08 pmIAD - SJD
1 stop19h 14mAmerican Airlines
Sun 12/212:04 pmSJD - IAD
1 stop16h 38mAmerican Airlines
Deal found 10/31$408
This American Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:34 amIAD - SJD
2 stops31h 48mAmerican Airlines
Tue 12/23:41 pmSJD - IAD
2 stops19h 53mAmerican Airlines
Deal found 10/31$411
This Aeromexico deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:00 amIAD - SJD
1 stop8h 10mAeromexico
Tue 12/26:50 pmSJD - IAD
2 stops22h 29mAeromexico
Deal found 11/2$412
This United Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:30 amIAD - SJD
1 stop8h 33mUnited Airlines
Tue 12/22:11 pmSJD - IAD
1 stop19h 12mUnited Airlines
Deal found 11/2$413
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1012:30 pmIAD - SJD
2 stops26h 10mDelta
Tue 12/163:15 pmSJD - IAD
2 stops18h 20mDelta
Deal found 11/2$417
This American Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:00 amIAD - SJD
1 stop8h 20mAmerican Airlines
Mon 12/222:04 pmSJD - IAD
1 stop16h 38mAmerican Airlines
Deal found 11/2$419
This American Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1011:25 amIAD - SJD
2 stops28h 07mAmerican Airlines
Mon 12/153:55 pmSJD - IAD
1 stop16h 50mAmerican Airlines
Deal found 11/2$428
This Aeromexico deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/84:01 pmIAD - SJD
1 stop19h 26mAeromexico
Sat 11/151:15 pmSJD - IAD
1 stop8h 04mAeromexico
Deal found 11/1$432
This American Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:00 amIAD - SJD
1 stop10h 52mAmerican Airlines
Fri 12/1211:26 amSJD - IAD
1 stop9h 33mAmerican Airlines
Deal found 10/31$434

Cheap flight deals from Dulles Intl to Cabo San Lucas

Keep the following information in mind while searching for Dulles Intl to Cabo San Lucas flight deals. Data was last updated November 3, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$403
(Aeromexico)

One-way from

$159
(Delta)

Popular in

June

Cheapest in

September

Average price

$542
Provider with most accurate pricing for Washington, D.C. (WAS)-San José del Cabo Los Cabos flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-San José del Cabo Los Cabos flights.
Search Deals
From Washington, D.C. Dulles Intl to Cabo San Lucas
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Cabo San Lucas
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Cabo San Lucas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Cabo San Lucas that are best for you.

Fly from

Dulles Intl

Fly to

Cabo San Lucas

Route

Depart

Return

Price

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Thu 11/27

6:34 am-12:22 pm

2 stops31h 48m

San José del Cabo Los Cabos

Tue 12/2

3:41 pm-1:34 pm

2 stops19h 53m

$411

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Wed 12/10

10:08 am-12:40 pm

2 stops28h 32m

San José del Cabo Los Cabos

Sat 12/13

2:40 pm-9:11 am

1 stop16h 31m

$417

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Thu 1/8

6:00 am-3:27 pm

2 stops11h 27m

San José del Cabo Los Cabos

Thu 1/22

10:25 am-11:57 pm

2 stops11h 32m

$422

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Wed 1/14

6:03 am-2:32 pm

1 stop10h 29m

San José del Cabo Los Cabos

Sun 1/18

1:05 pm-11:18 pm

1 stop8h 13m

$429

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Wed 1/14

3:15 pm-10:30 pm

1 stop9h 15m

San José del Cabo Los Cabos

Sun 1/18

12:36 pm-11:48 pm

1 stop9h 12m

$444

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Sat 12/13

3:38 pm-12:40 pm

2 stops23h 02m

San José del Cabo Los Cabos

Mon 12/15

3:15 pm-9:11 am

2 stops15h 56m

$448

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Sun 11/30

11:55 pm-1:03 pm

1 stop15h 08m

San José del Cabo Los Cabos

Sun 12/7

2:22 pm-5:16 am

1 stop12h 54m

$490

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Thu 12/4

10:35 pm-1:03 pm

1 stop16h 28m

San José del Cabo Los Cabos

Mon 12/8

1:05 pm-11:21 pm

1 stop8h 16m

$491

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Wed 12/10

5:37 pm-12:39 pm

1 stop21h 02m

San José del Cabo Los Cabos

Sun 12/14

5:10 pm-6:06 am

1 stop10h 56m

$495

Washington, D.C.San José del Cabo

IAD - SJD

IADSJD

Washington, D.C. Dulles Intl

Thu 11/13

7:01 am-6:05 pm

2 stops13h 04m

San José del Cabo Los Cabos

Wed 11/19

1:15 pm-12:16 am

1 stop9h 01m

$512

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 24 results
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Best time to book a flight from Dulles Intl to Cabo San Lucas

Have a flexible travel schedule? Discover the best time to fly to Cabo San Lucas from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Cabo San Lucas. Price data was last updated on October 31, 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Cabo San Lucas is 47 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas?

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas (average of $192). Flying from Washington, D.C. Dulles Intl Airport to Cabo San Lucas in June is currently the most expensive (average of $580). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Cabo San Lucas?

Reviews of airlines servicing Cabo San Lucas

Get insights into the airlines that provide service to Cabo San Lucas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cabo San Lucas. Reviews last updated November 3, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Cabo San Lucas, such as Delta, United Airlines, and Aeromexico. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,001 reviews

Food

7.3

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
Delta
7.9
Good
8,001 reviews
Delta
7.9
Good
8,001 reviews

Food

7.3

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
United Airlines
7.4
Good
8,997 reviews
Delta
7.9
Good
8,001 reviews

Food

7.3

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
Aeromexico
7.4
Good
1,673 reviews
Delta
7.9
Good
8,001 reviews

Food

7.3

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
American Airlines
7.2
Good
11,036 reviews
Delta
7.9
Good
8,001 reviews

Food

7.3

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Cabo San Lucas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas?

    A quick flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas can take about 10h 29m. American Airlines provides one of the quickest options available for as low as $429. There are 2182 mi between Washington, D.C. Dulles Intl Airport and Cabo San Lucas. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Dulles Intl to Cabo San Lucas that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Cabo San Lucas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Cabo San Lucas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Cabo San Lucas.

  • Can I find deals for business class flights from Dulles Intl to Cabo San Lucas?

    Yes. Cheapflights offers flight deals from Dulles Intl to Cabo San Lucas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas (average of $192). Flying from Washington, D.C. Dulles Intl Airport to Cabo San Lucas in June is currently the most expensive (average of $580). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 4 airlines flying from Dulles Intl to Cabo San Lucas

Discover the top 4 airlines that operate flights from Dulles Intl to Cabo San Lucas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
AeromexicoCheapest$173Average$512FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$253Average$449FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$402Average$583FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$411Average$603FlexibilityNo cancel feeOn-time71%

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