Cheap flights from Portland, Maine to Denver from $91
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 Denver departing on 4/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Portland, Maine to Denver
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Frontier flights from Portland, Maine to Denver
Our best Frontier deals on Portland, Maine to Denver flight tickets
American Airlines flights from Portland, Maine to Denver
Our best American Airlines deals on Portland, Maine to Denver flight tickets
See travel insights to Denver from
How to get the cheapest flight ticket from Portland, Maine to Denver
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 Denver?
The cheapest month to fly to Denver from Portland, Maine is in January. Flight prices, which tend to average around $347, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in January, then you should wait until August to fly from Portland, Maine, when ticket prices are also cheap, with an average price of $414.
What is the cheapest day to depart on your flight to Denver?
The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $560. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $784.
What is the cheapest time of day to depart on your flight to Denver?
The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $361. Flights in the afternoon are often more expensive with an average ticket price of $614.
What is the cheapest Portland to Denver Intl flight route?
Fly from Portland to Denver Intl for the best Portland - Denver Intl flight prices
How far in advance should I book a flight to Denver?
You are more likely to see cheaper flights to Denver from Portland, Maine when booking 11 weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $470 when searching 11 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Portland, Maine for as low as $379 on momondo.
What cabin class options are available on Portland to Denver Intl flights?
There are 4 cabin classes available to choose from on Portland to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Portland to Denver Intl?
Frontier, JetBlue, and Delta are the most popular carriers operating from Portland to Denver Intl
What airlines fly to Denver?
United Airlines, JetBlue and Delta are the top three most popular airlines that fly to Denver from Portland, Maine according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 8 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.
When to book flights from Portland, Maine to Denver
Cheap Portland, Maine to Denver (PWM to DEN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Denver
How far is Portland to Denver Intl by plane?
There are 1797.3 mi between Portland and Denver Intl. In terms of flight time, this usually takes a little over 4h 41m.
When did momondo last update prices for flights from Portland Airport to Denver Intl Airport?
Prices for flights from Portland Airport to Denver Intl Airport refresh daily.
How many operators does momondo search for flights from Portland Airport to Denver Intl Airport?
As of March 2025, there are 6 operators available to choose from for flights from Portland Airport to Denver Intl Airport.
How old do you have to be to fly from Portland Airport to Denver Intl 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 Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The required travel and health documents for your Denver Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Denver Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Portland, Maine to Denver?
momondo data reveals that the most frequently booked plane model on the route from Portland, Maine to Denver is Airbus A319, representing 43.48% of all bookings. The subsequent popular models are Airbus A220-300 at 13.04%, Airbus A321-100/200 at 10.87%, and Boeing 737-700 at 6.52%.
What is the most popular airline from Portland, Maine to Denver?
Based on momondo bookings for flights between Portland, Maine and Denver, the leading airline is United Airlines, making up 47% of the total bookings. Other popular airlines include Delta with 20%, American Airlines with 19%, and Southwest with 9%.
Best airlines flying from Portland, Maine to Denver
Compare and see reviews for airlines that fly from Portland, Maine to Denver with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $149 | Free Cancellation | Rating 6.0 3,308 reviews | |||
| PriceFrom $209 | Free Cancellation | Rating 7.3 2,962 reviews | |||
| PriceFrom $245 | Free Cancellation | Rating 8.0 7,973 reviews | |||
| PriceFrom $256 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $317 | Free Cancellation | Rating 8.0 4,300 reviews | |||
| PriceFrom $328 | Free Cancellation | Rating 7.4 8,631 reviews |
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Portland to Denver?
It is quick and easy to find Portland to Denver flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Denver that suits you.
Can I find flights from Portland to Denver with flexible booking policies on momondo?
All flight searches from Portland to Denver on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Portland to Denver?
Once all potential Portland to Denver 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 Denver right now. Can momondo alert me if prices change?
Price alerts on flights to Denver from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.