Cheap flights from Boston to Phoenix from $125

In general, January is the cheapest month to fly from Boston to Phoenix Sky Harbor Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $292. If you are unable to visit Phoenix Sky Harbor Intl Airport during the month of January, then departing from Boston during the month August is also very affordable. Most momondo users find prices during this month for around $313.

On average, the least expensive day to fly to Phoenix Sky Harbor Intl Airport from Boston is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $374. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $463. These prices are subject to change though, so be sure to set up a Price Alert for flights to Phoenix Sky Harbor Intl Airport.

In the evening is the cheapest time of day to fly from Boston to Phoenix Sky Harbor Intl Airport when you can find flight prices for as low as $332. Flying to Phoenix Sky Harbor Intl Airport in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $422. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Boston Logan Intl to Phoenix Sky Harbor Intl for the best Boston Logan Intl - Phoenix Sky Harbor Intl flight prices

You are more likely to see cheaper flights to Phoenix Sky Harbor Intl Airport from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix Sky Harbor Intl Airport for around $358 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phoenix Sky Harbor Intl Airport from Boston for as low as $322 on momondo.

There are 4 cabin classes available to choose from on Boston Logan Intl to Phoenix Sky Harbor Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 4% on your flight if you consider stops on a Boston to Phoenix Sky Harbor Intl Airport flight.

As of April 2026, prices for Boston to Phoenix Sky Harbor Intl Airport flights are approximately 8% cheaper when compared to flights at the same time last year.

Southwest and Delta are the most popular carriers operating from Boston Logan Intl to Phoenix Sky Harbor Intl

American Airlines, Delta and JetBlue are the top three most popular airlines that fly to Phoenix Sky Harbor Intl Airport from Boston according to our data. American Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Phoenix Sky Harbor Intl Airport. Keep in mind that there are 7 different airlines that fly to Phoenix Sky Harbor Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 18% of flights between Boston and Phoenix have experienced a delay on any given week. The average delay length over the past 12 months has been 158 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, American Airlines have had the least number of delays on this route over the last 12 months; with about 15% of their flights experiencing any sort of delay.

Washington, D.C. (IAD) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Cleveland (CLE) offer the lowest average round-trip price of $182.

Flights connecting via Washington, D.C. (IAD) have the shortest average one-way travel time: 8h 12m.

Washington, D.C. (IAD) has the shortest average layover time for this route: 1h 02m.

The number of flights available between Boston and Phoenix Sky Harbor Intl Airport is 8 per day as of April 2026. The most frequent departure time is 6:00PM, with 42% of daily flights leaving in the afternoon.

As of April 2026, there are 56 flights per week flying from Boston to Phoenix Sky Harbor Intl Airport. The most common day of the week flights depart is Thu, with 21% of flights taking off on this day.