What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Boise round-trip?

Flying on Hawaiian Airlines is currently your cheapest option to Boise, with prices starting at $284. Additional round-trip tickets that might be worth considering are offered by Southwest and United Airlines, with the lowest prices starting at $290 and $301, respectively. Users have found that Hawaiian Airlines is 37% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Boise one-way?

$163 is the cheapest one-way deal found within the past few days, from Sun Country Air. You may also be able to find cheap deals on Hawaiian Airlines and Alaska Airlines, with prices starting from $183 and $185, respectively.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Boise?

Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Boise (average of $314). Flying from Washington, D.C. Dulles Intl Airport to Boise in June is currently the most expensive (average of $398). 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.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Boise?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Boise flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Boise ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Boise when rainfall is around 0.2 in.

If weather is an important factor for your trip to Boise, 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 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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

Before booking your flight from Washington, D.C. Dulles Intl Airport to Boise check out the most popular airlines for this route: American Airlines, Alaska Airlines or Delta.

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Boise?

Flying to your destination on a Sunday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Boise. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Boise?

To save up to 86% on this flight, we recommend booking at least 26 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Washington, D.C. Dulles Intl Airport to Boise from $245 1-2 weeks out and tickets from $435 for flights departing within the next 72 hours.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Boise?

Flights from Washington, D.C. Dulles Intl Airport to Boise lean towards being more expensive in December. Prices are generally better when you fly from Washington, D.C. Dulles Intl Airport to Boise in April, with the cheapest ticket starting at $212.

What airport do you fly into for flights to Boise from Washington, D.C. Dulles Intl?

Most people fly into Boise Air Term. Gowen Fld (BOI) if they book a flight to Boise from Washington, D.C. Dulles Intl. On average, Air Term. Gowen Fld has 0 inbound flights from Washington, D.C. Dulles Intl per day from 5 airlines. Boise Air Term. Gowen Fld is conveniently located just 3.3 mi from Boise’s city center.

Can I find deals for flights from Dulles Intl to Boise that include hotel bookings?

Yes. In addition to deals on Dulles Intl to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Dulles Intl to Boise?

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

Can I find deals for business class flights from Dulles Intl to Boise?

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

$163+ Flights from Washington, D.C. Dulles Intl Airport to Boise

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Cheap flight deals from Dulles Intl to Boise

Round-trip from	$284 (Hawaiian Airlines)
One-way from	$163 (Booking.com)
Popular in	December
Cheapest in	May
Average price	$487

From Washington, D.C. Dulles Intl to Boise Air Term. Gowen Fld

Search Deals

One-way flight from Washington, D.C. Dulles Intl to Boise Air Term. Gowen Fld

Search Deals

Highest demand for flights based on searches. 18% potential increase in price ($103 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Find flight deals from Dulles Intl to Boise

Cheapest flights from Dulles Intl to Boise
Explore the most affordable flight options available from Dulles Intl to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 26, 2025.

mié. 8/277:00 amIAD - BOI

1 stop10h 54mHawaiian Airlines

mié. 9/37:17 pmBOI - IAD

1 stop10h 15mHawaiian Airlines

Deal found 6/25

$284

mié. 8/277:00 amIAD - BOI

1 stop10h 54mAlaska Airlines

sáb. 8/308:18 pmBOI - IAD

1 stop18h 29mAlaska Airlines

Deal found 6/24

$285

mié. 8/276:05 pmIAD - BOI

1 stop7h 00mSouthwest

mié. 9/38:45 amBOI - IAD

2 stops11h 20mSouthwest

Deal found 6/25

$290

jue. 9/186:25 amIAD - BOI

1 stop8h 22mAmerican Airlines

sáb. 9/271:38 pmBOI - IAD

1 stop7h 07mAmerican Airlines

Deal found 6/26

$301

jue. 8/217:00 amIAD - BOI

1 stop8h 30mUnited Airlines

mar. 8/2610:45 amBOI - IAD

1 stop6h 28mUnited Airlines

Deal found 6/25

$309

lun. 11/247:20 amIAD - BOI

1 stop6h 56mDelta

jue. 12/41:43 pmBOI - IAD

1 stop8h 24mDelta

Deal found 6/24

$327

jue. 7/176:05 amIAD - BOI

1 stop12h 27mSun Country Air

dom. 7/207:38 pmBOI - IAD

1 stop14h 05mSun Country Air

Deal found 6/24

$329

mié. 8/205:40 pmIAD - BOI

3 stops26h 46mMultiple Airlines

lun. 8/257:30 pmBOI - IAD

3 stops13h 56mMultiple Airlines

Deal found 6/25

$385

Best flights from Dulles Intl to Boise
Discover carefully curated flight deals from Dulles Intl to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated junio 26, 2025.

mié. 8/277:00 amIAD - BOI

1 stop10h 54mHawaiian Airlines

mié. 9/37:17 pmBOI - IAD

1 stop10h 15mHawaiian Airlines

Deal found 6/25

$284

mié. 8/276:05 pmIAD - BOI

1 stop7h 00mSouthwest

mié. 9/38:45 amBOI - IAD

2 stops11h 20mSouthwest

Deal found 6/25

$290

jue. 8/216:35 amIAD - BOI

1 stop6h 56mUnited Airlines

mié. 8/272:13 pmBOI - IAD

1 stop8h 17mUnited Airlines

Deal found 6/25

$301

jue. 9/187:00 amIAD - BOI

1 stop10h 00mAlaska Airlines

lun. 9/228:18 pmBOI - IAD

1 stop18h 29mAlaska Airlines

Deal found 6/26

$316

jue. 10/26:25 amIAD - BOI

1 stop8h 22mAmerican Airlines

lun. 10/61:41 pmBOI - IAD

1 stop6h 41mAmerican Airlines

Deal found 6/26

$317

vie. 8/223:26 pmIAD - BOI

1 stop9h 03mDelta

lun. 8/255:30 amBOI - IAD

2 stops11h 19mDelta

Deal found 6/26

$330

sáb. 8/99:20 pmIAD - BOI

2 stops21h 30mMultiple Airlines

dom. 8/177:30 pmBOI - IAD

3 stops13h 50mMultiple Airlines

Deal found 6/26

$359

Last-minute flights from Dulles Intl to Boise
Discover last-minute flight deals from Dulles Intl to Boise. Data last updated junio 26, 2025 and is based on user searches.

dom. 6/2912:55 pmIAD - BOI

3 stops21h 53mMultiple Airlines

vie. 7/49:43 amBOI - IAD

2 stops24h 00mMultiple Airlines

Deal found 6/26

$768

jue. 7/36:13 pmIAD - BOI

1 stop7h 58mHawaiian Airlines

mar. 7/88:46 pmBOI - IAD

1 stop8h 41mHawaiian Airlines

Deal found 6/25

$1,018

vie. 7/44:10 pmIAD - BOI

1 stop7h 00mSouthwest

sáb. 7/55:00 amBOI - IAD

1 stop6h 10mSouthwest

Deal found 6/25

$455

vie. 7/49:10 amIAD - BOI

2 stops9h 36mAmerican Airlines

sáb. 7/511:44 amBOI - IAD

1 stop9h 02mAmerican Airlines

Deal found 6/25

$487

vie. 7/45:13 pmIAD - BOI

1 stop7h 39mUnited Airlines

lun. 7/72:39 pmBOI - IAD

1 stop8h 06mUnited Airlines

Deal found 6/26

$632

vie. 7/43:31 pmIAD - BOI

2 stops10h 20mDelta

lun. 7/71:29 pmBOI - IAD

1 stop9h 05mDelta

Deal found 6/26

$637

vie. 7/116:30 amIAD - BOI

1 stop10h 34mHawaiian Airlines

sáb. 7/196:00 pmBOI - IAD

1 stop10h 50mHawaiian Airlines

Deal found 6/26

$498

dom. 7/206:30 amIAD - BOI

1 stop9h 00mUnited Airlines

sáb. 7/262:32 pmBOI - IAD

1 stop6h 38mUnited Airlines

Deal found 6/25

$388

dom. 7/206:27 amIAD - BOI

1 stop10h 14mAmerican Airlines

jue. 7/2411:44 amBOI - IAD

1 stop9h 02mAmerican Airlines

Deal found 6/26

$465

mar. 7/228:10 amIAD - BOI

1 stop10h 54mAlaska Airlines

mié. 8/131:00 pmBOI - IAD

1 stop15h 50mAlaska Airlines

Deal found 6/25

$301

mié. 7/235:35 pmIAD - BOI

1 stop9h 05mSouthwest

mié. 7/3010:20 amBOI - IAD

1 stop6h 05mSouthwest

Deal found 6/26

$351

mié. 7/235:23 pmIAD - BOI

2 stops8h 36mDelta

mié. 7/3011:40 pmBOI - IAD

1 stop7h 39mDelta

Deal found 6/26

$357

One-way flights from Dulles Intl to Boise
Search for one-way flight options from Dulles Intl to Boise. Find affordable one-way fares based on user searches. Data last updated junio 26, 2025.

dom. 8/1011:04 amIAD - BOI

1 stop7h 46mSun Country Air

Deal found 6/26

$163

sáb. 8/307:00 amIAD - BOI

1 stop10h 54mHawaiian Airlines

Deal found 6/24

$183

mar. 7/159:00 amIAD - BOI

1 stop10h 06mAlaska Airlines

Deal found 6/24

$185

lun. 7/216:32 amIAD - BOI

1 stop9h 26mUnited Airlines

Deal found 6/25

$186

mar. 7/156:00 amIAD - BOI

2 stops10h 12mDelta

Deal found 6/24

$191

dom. 8/1011:58 amIAD - BOI

3 stops32h 54mMultiple Airlines

Deal found 6/26

$205

jue. 7/245:00 amIAD - BOI

1 stop6h 35mSouthwest

Deal found 6/25

$212

jue. 7/316:35 amIAD - BOI

2 stops12h 12mAmerican Airlines

Deal found 6/25

$274

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Boise that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mié. 8/27

7:00 am-3:54 pm

1 stop10h 54m

Boise Air Term. Gowen Fld

mié. 9/3

7:17 pm-7:32 am

1 stop10h 15m

$284

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mié. 8/27

7:00 am-3:54 pm

1 stop10h 54m

Boise Air Term. Gowen Fld

sáb. 8/30

8:18 pm-4:47 pm

1 stop18h 29m

$285

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mié. 8/27

6:05 pm-11:05 pm

1 stop7h 00m

Boise Air Term. Gowen Fld

mié. 9/3

8:45 am-10:05 pm

2 stops11h 20m

$290

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

jue. 9/18

6:25 am-12:47 pm

1 stop8h 22m

Boise Air Term. Gowen Fld

sáb. 9/27

1:38 pm-10:45 pm

1 stop7h 07m

$301

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

jue. 8/21

7:00 am-1:30 pm

1 stop8h 30m

Boise Air Term. Gowen Fld

mar. 8/26

10:45 am-7:13 pm

1 stop6h 28m

$309

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

jue. 7/17

6:05 am-4:32 pm

1 stop12h 27m

Boise Air Term. Gowen Fld

dom. 7/20

7:38 pm-11:43 am

1 stop14h 05m

$329

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

vie. 8/8

6:00 am-2:12 pm

2 stops10h 12m

Boise Air Term. Gowen Fld

lun. 8/18

7:45 pm-5:55 am

1 stop8h 10m

$349

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

mié. 8/20

5:40 pm-6:26 pm

3 stops26h 46m

Boise Air Term. Gowen Fld

lun. 8/25

7:30 pm-11:26 am

3 stops13h 56m

$385

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

dom. 8/10

11:04 am-4:50 pm

1 stop7h 46m

$163

Washington, D.C.Boise

IAD - BOI

IADBOI

Washington, D.C. Dulles Intl

sáb. 8/30

7:00 am-3:54 pm

1 stop10h 54m

$183

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/26

Showing 1-10 of 16 results

Best time to book a flight from Dulles Intl to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Boise

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

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Dulles Intl Airport to Boise at noon. If you’re flexible enough to do this you can expect to save up to 36% on your trip compared to booking a flight in the evening.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Boise?

Reviews of airlines servicing Boise

Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Washington, D.C. Dulles Intl Airport to Boise by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,276 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,963 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.8

Good

2,522 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,838 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

What airport do you fly into for flights to Boise from Washington, D.C. Dulles Intl?
Most people fly into Boise Air Term. Gowen Fld (BOI) if they book a flight to Boise from Washington, D.C. Dulles Intl. On average, Air Term. Gowen Fld has 0 inbound flights from Washington, D.C. Dulles Intl per day from 5 airlines. Boise Air Term. Gowen Fld is conveniently located just 3.3 mi from Boise’s city center.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Boise round-trip?
Flying on Hawaiian Airlines is currently your cheapest option to Boise, with prices starting at $284. Additional round-trip tickets that might be worth considering are offered by Southwest and United Airlines, with the lowest prices starting at $290 and $301, respectively. Users have found that Hawaiian Airlines is 37% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Boise one-way?
$163 is the cheapest one-way deal found within the past few days, from Sun Country Air. You may also be able to find cheap deals on Hawaiian Airlines and Alaska Airlines, with prices starting from $183 and $185, respectively.
Can I find deals for flights from Dulles Intl to Boise that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Boise flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Boise?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Boise.
Can I find deals for business class flights from Dulles Intl to Boise?
Yes. Cheapflights offers flight deals from Dulles Intl to Boise 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 Washington, D.C. Dulles Intl Airport to Boise?
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Boise (average of $314). Flying from Washington, D.C. Dulles Intl Airport to Boise in June is currently the most expensive (average of $398). 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.

See more FAQs

Nampa

Meridian

Ontario

McCall

Caldwell

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Alternative routes for Dulles Intl to Boise

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Other flights to Boise

Top 5 airlines flying from Dulles Intl to Boise

Airline	Cheapest	Average	Flexibility	On-time
Alaska Airlines	Cheapest$230	Average$527	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$237	Average$425	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$293	Average$422	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$326	Average$467	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$428	Average$588	FlexibilityNo cancel fee	On-time63%

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$163+ Cheap flights from Dulles Intl (IAD) to Boise (BOI)

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Boise with Cheapflights

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Cheap flight deals from Dulles Intl to Boise

Round-trip from

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Find flight deals from Dulles Intl to Boise

Cheapest flights from Dulles Intl to BoiseExplore the most affordable flight options available from Dulles Intl to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 26, 2025.

Explore the most affordable flight options available from Dulles Intl to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 26, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Boise that are best for you.

Best time to book a flight from Dulles Intl to Boise

Have a flexible travel schedule? Discover the best time to fly to Boise from Dulles Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Boise

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

Find hourly flight availability from Dulles Intl to Boise. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 26, 2025.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Boise?

Reviews of airlines servicing Boise

Get insights into the airlines that provide service to Boise. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boise. Reviews last updated junio 26, 2025.

Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Washington, D.C. Dulles Intl Airport to Boise by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What airport do you fly into for flights to Boise from Washington, D.C. Dulles Intl?

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Boise round-trip?

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Boise one-way?

Can I find deals for flights from Dulles Intl to Boise that include hotel bookings?

How can I find direct flights from Dulles Intl to Boise?

Can I find deals for business class flights from Dulles Intl to Boise?

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Boise?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Alternative routes for Dulles Intl to Boise

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

Top 5 airlines flying from Dulles Intl to Boise

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Cheapest flights from Dulles Intl to Boise
Explore the most affordable flight options available from Dulles Intl to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 26, 2025.