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312 Eats
Mt Prospect · Thai · $$

Penthai

4.6348 reviews ·Opens at 11AM tomorrow
This is one of the most delicious Thai food restaurants I visited and I had visited many
Kelvin CeeKelvin Cee · 120 Google reviews
Read the reviews on Google →

Penthai — Mt Prospect thai that sets the standard. Straight from the source, no adjustments, and affordable. "If you’re sensitive to spicy food, the medium spicy tier may be too spicy" — Darian Duchan [$$]

🌱Vegan & vegetarian friendly — real options, not one sad pasta.

What 348 diners keep saying

Fast serviceCozyQuick biteTakeout strong
Plan your visit
1652 Algonquin Rd, Mt Prospect, IL 60056
Mt Prospect
Today11AM-9PM
Sun12-9PM
Mon–Fri11AM-9PM
Sat12-9PM
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What 348 diners keep saying

verbatim, from Google
Review photo by Chicago Bae Reviews
Jul 2026

You can’t go wrong with a small, locally owned restaurant. My friend and I decided to give it a try, and I must say, it’s one of the best Thai places I’ve ever been to in Illinois. The food is simply amazing! The quality and flavors are at the best I’ve ever experienced. The prices are also incredibly reasonable, making it a great value for money. It reminded me of the delicious Thai food I had when I visited Thailand in my younger days. The service was good, although I did feel a bit rushed since there was only one waitress. However, the food was worth the wait, so it wasn’t a major issue. The ambiance was great. The decor was warm and welcoming, and it reminded me of the restaurants I used to love back in the day. It was a refreshing change from the modern, sterile restaurants that are so common these days. Overall, I highly recommend this hidden gem. It’s a must-try for anyone who loves Thai food.

Chicago Bae Reviews

Chicago Bae Reviews

324 reviews on Google

Review photo by C K
Mar 2026

All dishes we had were very fresh and tasty. My husband especially loves getting the crispy flat noodles

C K

C K

81 reviews on Google

Review photo by Miguel O
Mar 2026

Damnnnnnn the parang noodle with chicken was delicious!!! Just a tad bit of spice and so flavorful!!! Crab rangoon was yummy too!! We shall be back!

Miguel O

Miguel O

44 reviews on Google

Review photo by CRISTOPHER MANUEL SANCHEZ RODRIGUEZ
Mar 2026

This little jewel gave me a very nice dinner. The red curry and the cashew stir fry were completely amazing. Portions of entrees are perfect per person. The star of the night was the Shrimp soup, little spicy like I always like it. Thanks for the good taste and the food preparation.

CRISTOPHER MANUEL SANCHEZ RODRIGUEZ

CRISTOPHER MANUEL SANCHEZ RODRIGUEZ

135 reviews on Google

Review photo by one 7 five
Dec 2025

Penthai Restaurant – December 9, 2025 We started our meal with the Chicken Satay served with peanut sauce — tender, flavorful, and a great start to the evening. For our main courses, we enjoyed a delicious spread of Penthai Fried Rice, Mongolian Beef, Garlic Chicken, Ginger Salmon, and Crispy Tofu Pad See Ewe. Each dish was tasty and came in generous portions, perfect for sharing. As a small note for next time, we’d love the flavors to be just a bit less salty 🧂 — the dishes had great depth and could shine even more with a lighter touch on the seasoning. The ambience was pleasant and welcoming, and the staff were friendly and impressively quick. Overall, it was a satisfying dining experience and a place we’d happily return to!

one 7 five

one 7 five

122 reviews on Google

Review photo by James W
Oct 2025

Pad see ew with chicken #4 spicy

James W

James W

98 reviews on Google

Review photo by Andrew
May 2025

Amazing Thai restaurant! The food is bursting with flavors—Pad Kee Moa,pad thai, lots of great noodle and rice curry dishes. The green curry are must-tries. Service is friendly and attentive, creating a warm atmosphere. Highly recommend for a delicious and satisfying dining experience!

Andrew

Andrew

84 reviews on Google

Review photo by Joah Kim
Apr 2025

It's been so long since I've had Thai food. Thai food isn't something I crave often, but I love it every time I have it. Pen Thai delivers big on flavor and calm atmosphere. I tried their Papaya Salad, Pad Thai w/ chicken, Red curry all at spice level 3, Pad Kee-Mao w/ chicken (spice level 2 & 3 & 4), and green curry w/ tofu (spice level 2). I love spicy food and Thai spice REALLY brings the heat! It's so addictive and delicious, but honestly, I think I'll stick with level 2 from now on to give my tummy grace. Service is always quick and everything is always so tasty. The value of all the items is also affordable compared to other Thai places I've been to. Thankful for this small gem of a spot so close to home! Definitely felt the kick the dining area had a calm vibe, and the service was excellent. A great spot for delicious Thai food and a relaxing meal!

Joah Kim

Joah Kim

18 reviews on Google

Review photo by joyce ku
Apr 2025

This is the best place for thai food in the area. Very spicy and authentic. Mom and pop shop with dishes that are bursting with flavor. The penthai fried rice was soooo good. Please check it out if you get a chance!

joyce ku

joyce ku

47 reviews on Google

Review photo by Darian Duchan
Jan 2025

Super cozy place and the food had amazing flavor. The service was great and the vibe inside was chill. If you’re sensitive to spicy food, the medium spicy tier may be too spicy

Darian Duchan

Darian Duchan

23 reviews on Google

Review photo by HaNa
May 2026

We went for lunch and ordered the green curry and the yellow curry. Both tastes spicy and sweet of coconut milk. I chose medium spicy, but it’s quite spicy for me. The other one chose hot spicy and it was hard to finish it because it was too spicy. Taste was good and the price is reasonable, so I’d like to visit there again, but I recommend to choose less spicy..

HaNa

HaNa

67 reviews on Google

Review photo by C Suarez
Aug 2025

Pleasant atmosphere, we went for lunch and were the only family dining inside but noticed a lot of orders for pickup. Big portions, reasonably priced. Clean bathroom. Located in a strip mall. Not the best Thai restaurant we've been to, but it wasn't bad!

C Suarez

C Suarez

121 reviews on Google

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