In terms of precipitation, rainfall in Cabo San Lucas ranges from 0.0 - 4.5 inches per month. September is typically the wettest month, when rainfall can reach 4.5 in. March is typically the driest time to visit Cabo San Lucas when rainfall is around 0.0 in.

If weather is an important factor for your trip to Cabo San Lucas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 66.2 F).

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Cabo San Lucas?

On average you can expect to pay $892 for a flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas. The cheapest flight overall is $705 while the most popular route, (Washington, D.C. Dulles Intl - San José del Cabo Los Cabos) is currently priced at $323.

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Cabo San Lucas?

When booking a flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas, you may want to consider flying on United Airlines, American Airlines or Delta as they are the most popular for this route.

What is the cheapest time of day to fly from IAD to C4B?

When flying from Washington, D.C. Dulles Intl Airport to Cabo San Lucas, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

Find Cheap Flights from Washington, D.C. Dulles Intl Airport to Cabo San Lucas

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Find flight deals from Dulles Intl to Cabo San Lucas

Popular in	August
Cheapest in	January
Average price	$622

Highest demand for flights based on searches. 5% potential increase in price ($38 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).

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Average for round-trip flights in October 2026

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Reviews of airlines servicing Cabo San Lucas

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Cabo San Lucas, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.8

Good

8,608 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

Delta

7.8

Good

8,608 reviews

Delta

7.8

Good

8,608 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

United Airlines

7.4

Good

10,261 reviews

Delta

7.8

Good

8,608 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

American Airlines

7.0

Good

12,097 reviews

Delta

7.8

Good

8,608 reviews

Reviews

1 / 20

4.0

Okay

Jennifer,Sep 2026

ORD - LGA

The flight crew was 30 minutes late to an am flight and then that caused a delay

Related info for your journey

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Cabo San Lucas?
On average you can expect to pay $892 for a flight from Washington, D.C. Dulles Intl Airport to Cabo San Lucas. The cheapest flight overall is $705 while the most popular route, (Washington, D.C. Dulles Intl - San José del Cabo Los Cabos) is currently priced at $323.
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.

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Top 3 airlines flying from Dulles Intl to Cabo San Lucas

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$371	Average$581	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$404	Average$609	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$456	Average$582	FlexibilityNo cancel fee	On-time71%

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Find cheap flights from Dulles Intl to Cabo San Lucas with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Find flight deals from Dulles Intl to Cabo San Lucas

Popular in

Cheapest in

Average price

Reviews of airlines servicing Cabo San Lucas

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Cabo San Lucas, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Cabo San Lucas?

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

How can I 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?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Cabo San Lucas

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Cabo San Lucas by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Dulles Intl to Cabo San Lucas by cabin class

Find flights from Dulles Intl to Cabo San Lucas, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Dulles Intl and Cabo San Lucas flights

Browse other Dulles Intl and Cabo San Lucas flight options. Last updated on October 1, 2026.

Other flights from Dulles Intl

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

Find cheap flights from Dulles Intl to Cabo San Lucas with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Dulles Intl to Cabo San Lucas

Popular in

Cheapest in

Average price

Reviews of airlines servicing Cabo San Lucas

Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Cabo San Lucas, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Cabo San Lucas?

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

How can I 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?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Cabo San Lucas

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Cabo San Lucas by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Dulles Intl to Cabo San Lucas by cabin class

Find flights from Dulles Intl to Cabo San Lucas, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Dulles Intl and Cabo San Lucas flights

Browse other Dulles Intl and Cabo San Lucas flight options. Last updated on October 1, 2026.

Other flights from Dulles Intl

Browse through other flights departing from Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on October 1, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Dulles Intl to Cabo San Lucas flights

Consider these flights traveling from Dulles Intl to Cabo San Lucas.

Top 3 airlines flying from Dulles Intl to Cabo San Lucas

100% Free

Book with Flexibility

Travel Smart