In terms of precipitation, rainfall in Oakland, California ranges from 0.0 - 4.8 inches per month. January is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Oakland, California when rainfall is around 0.0 in.

If weather is an important factor for your trip to Oakland, California, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

What is the cheapest time of day to fly from HRL to OAK?

When flying from Harlingen, Texas to Oakland, California, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Harlingen, Texas-Oakland, California flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Harlingen, Texas-Oakland, California flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Harlingen, Texas-Oakland, California flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Harlingen, Texas-Oakland, California flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Harlingen, Texas-Oakland, California flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Harlingen to Oakland that include hotel bookings?

Yes. In addition to deals on Harlingen to Oakland flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Harlingen to Oakland?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harlingen to Oakland.

Can I find deals for business class flights from Harlingen to Oakland?

Yes. Cheapflights offers flight deals from Harlingen to Oakland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$480+ Flights from Harlingen, TX to Oakland, CA

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Cheap flight deals from Harlingen to Oakland

One-way flights from Harlingen to Oakland
Search for one-way flight options from Harlingen to Oakland. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

Sun 12/285:50 amHRL - OAK

1 stop6h 45mSouthwest

Deal found 12/10

$480

Find flight deals from Harlingen to Oakland

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Popular in	April
Cheapest in	October
Average price	$483

Provider with most accurate pricing for Harlingen Valley Intl-Oakland flight deals.

Search Deals

Provider most trusted by Cheapflights users for Harlingen Valley Intl-Oakland flights.

Search Deals

Highest demand for flights based on searches. 24% potential increase in price ($121 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($24 potential savings vs. average RT price).

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Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

HarlingenOakland

HRL - OAK

HRLOAK

Harlingen Valley Intl

Sun 12/28

5:50 am-10:35 am

1 stop6h 45m

$480

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Compare providers for flights from Harlingen to Oakland

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Harlingen to Oakland in December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Expedia	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Harlingen, Texas-Oakland, California flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Harlingen, Texas-Oakland, California flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Harlingen, Texas-Oakland, California flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Harlingen, Texas-Oakland, California flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Harlingen, Texas-Oakland, California flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Harlingen to Oakland

Have a flexible travel schedule? Discover the best time to fly to Oakland from Harlingen 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 Harlingen to Oakland

What is the cheapest month to book a flight from Harlingen, Texas to Oakland, California?

Currently, October is the cheapest month in which you can book a flight from Harlingen, Texas to Oakland, California (average of $123). Flying from Harlingen, Texas to Oakland, California in March is currently the most expensive (average of $411). 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.

Related info for your journey

Can I find deals for flights from Harlingen to Oakland that include hotel bookings?
Yes. In addition to deals on Harlingen to Oakland flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Harlingen to Oakland?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harlingen to Oakland.
Can I find deals for business class flights from Harlingen to Oakland?
Yes. Cheapflights offers flight deals from Harlingen to Oakland 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 Harlingen, Texas to Oakland, California?
Currently, October is the cheapest month in which you can book a flight from Harlingen, Texas to Oakland, California (average of $123). Flying from Harlingen, Texas to Oakland, California in March is currently the most expensive (average of $411). 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.

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$480+ Cheap flights from Harlingen, TX to Oakland, CA (HRL - OAK)

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 12/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Harlingen to Oakland with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Harlingen to Oakland

One-way flights from Harlingen to OaklandSearch for one-way flight options from Harlingen to Oakland. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

Search for one-way flight options from Harlingen to Oakland. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

Find flight deals from Harlingen to Oakland

Most accurate provider

Most trusted provider

Popular in

Cheapest in

Average price

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Use the filters below to find and compare flights from Harlingen to Oakland that are best for you.

Compare providers for flights from Harlingen to Oakland

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Harlingen to Oakland in December.

Best time to book a flight from Harlingen to Oakland

Have a flexible travel schedule? Discover the best time to fly to Oakland from Harlingen with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Harlingen to Oakland

What is the cheapest month to book a flight from Harlingen, Texas to Oakland, California?

Related info for your journey

Find useful and relevant information for your journey from Harlingen to Oakland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Harlingen to Oakland that include hotel bookings?

How can I find direct flights from Harlingen to Oakland?

Can I find deals for business class flights from Harlingen to Oakland?

What is the cheapest month to book a flight from Harlingen, Texas to Oakland, California?

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One-way flights from Harlingen to Oakland
Search for one-way flight options from Harlingen to Oakland. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.