Cheap flights from Portland, Maine to San Diego from $179
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland, Maine to San Diego departing on 7/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Portland, Maine to San Diego
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to San Diego?
If you are unable to visit San Diego during the month of January, then departing from Portland, Maine during the month October is also very affordable. Most momondo users find prices during this month for around $433.
What is the cheapest day to depart on your flight to San Diego?
The cheapest day to depart from Portland, Maine to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $472. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $809. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.
What is the cheapest time of day to depart on your flight to San Diego?
The cheapest time of day to fly to San Diego is in the afternoon when flights can be purchased for as low as $476. Flights in the morning are often more expensive with an average ticket price of $543.
How far in advance should I book a flight to San Diego?
You are more likely to see cheaper flights to San Diego from Portland, Maine when booking 15 weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $512 when searching 15 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Portland, Maine for as low as $329 on momondo.
What is the cheapest airline that flies from Portland to San Diego?
Delta, American Airlines, and United Airlines are the most popular carriers operating from Portland to San Diego
What airlines fly to San Diego?
JetBlue, American Airlines and Delta are the top three most popular airlines that fly to San Diego from Portland, Maine according to our data. JetBlue is the first choice among our users, with 38% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 10 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.
When to book flights from Portland, Maine to San Diego
Cheap Portland, Maine to San Diego (PWM to SAN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to San Diego
How far is Portland to San Diego by plane?
The distance between Portland and San Diego is about 2617.3 mi. In terms of flight time, this usually takes a little over 7h 50m.
When did momondo last update prices for flights from Portland Airport to San Diego Airport?
Prices for flights from Portland Airport to San Diego Airport refresh daily.
How many operators does momondo search for flights from Portland Airport to San Diego Airport?
There are 4 operators available for flights from Portland Airport to San Diego Airport as of June 2025.
How old do you have to be to fly from Portland Airport to San Diego Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Portland, Maine to San Diego?
momondo data reveals that the most frequently booked airline on the route from Portland, Maine to San Diego is American Airlines, representing 47% of all bookings. The subsequent popular airlines are United Airlines at 26%, Delta at 14%, and Southwest at 13%.
Best airlines flying from Portland, Maine to San Diego
Compare and see reviews for airlines that fly from Portland, Maine to San Diego with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $320 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $327 | Free Cancellation | Rating 8.0 7,956 reviews | |||
| PriceFrom $346 | Free Cancellation | Rating 7.4 8,774 reviews | |||
| PriceFrom $348 | Free Cancellation | Rating 8.0 4,288 reviews |
Traveling to a place near San Diego?
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Why should I use momondo to find a flight deal from Portland to San Diego?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Portland to San Diego. momondo saves you time and could save you money on your trip.
Can I find flights from Portland to San Diego with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to San Diego from Portland with this policy.
How can momondo help me find flights from Portland to San Diego?
Once all potential Portland to San Diego flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Portland to San Diego right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Portland to San Diego flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.