Hilton Irvine/Orange County Airport, at 18800 MacArthur Blvd., has 25,274 sq ft of event space, led by the 7,020 sq ft Crystal Ballroom. Above the Line provides audio, video, lighting and LED for conferences, galas and weddings.
The hotel offers three ballrooms, a set of meeting rooms and a large outdoor terrace. We size sound, video and lighting to each room from the hotel's own chart.
Room names, sizes and capacities come from the hotel's Events page at hilton.com. Photos are the hotel's own. Production notes describe a typical Above the Line setup for each space.
The hotel's largest room, for theater seating of up to 800 and receptions of up to 700.
Theater 800 · Reception 700 · Banquet 550 · Schoolroom 500
For an 800-seat general session in the Crystal Ballroom, we build the stage on the long wall with twin screens and a camera riser for IMAG.
Three-salon and two-salon splits, for up to 580 theater style.
Salons B, C and D: Theater 580 · Salons A, B and C: Theater 500
When the Crystal Ballroom splits for a general session and breakouts, we run separate systems and park the control desk at the airwall.
The pre-function space outside the ballroom, for receptions of up to 200.
Reception 200
For registration in the Crystal Foyer, we set welcome displays and sponsor loops, with walk-in music on small speakers.
A second ballroom, for receptions of up to 310 and banquets of up to 260.
Reception 310 · Banquet 260 · Theater 250 · Schoolroom 200
For a 260-guest dinner in the Monarch Ballroom, we set a podium, a screen at each side and uplighting on the walls.
A meeting room for receptions of up to 220 and theater seating for 200.
Reception 220 · Theater 200 · Banquet 150 · Schoolroom 140
For a 200-seat session in the Irvine Ballroom, we set a center screen with a lectern and two wireless handhelds for Q and A.
A meeting room for theater seating of up to 200 and receptions of up to 150.
Theater 200 · Reception 150 · Banquet 120 · Schoolroom 114
For a U-shape workshop in the Catalina Ballroom, we pair the projector with a speakerphone for remote presenters.
A meeting room for up to 35 theater style or 26 at a conference table.
Theater 35 · Conference 26 · Hollow square 26 · U-shape 26
For a breakout in the California Room, we set a display on a stand and a small speaker for video playback.
A meeting room for up to 40 theater style or 30 at a conference table.
Theater 40 · Conference 30 · Banquet 30
For a small session in San Clemente, we provide a display, a wireless presenter and a speakerphone.
A boardroom for meetings of up to 10.
Conference 10
For a hybrid board meeting in the Executive Boardroom, we install a conference camera and table mics alongside the wall display.
The largest outdoor space, for receptions of up to 450 and theater seating for 400.
Reception 450 · Theater 400 · Banquet 300
For an evening reception on the Patio Terrace, we run weather-ready speakers, festoon-style lighting and a small stage for remarks.
All figures come from the capacity chart on the hotel's Events page. The chart does not list room dimensions or ceiling heights.
| Room | Sq ft | Theater | Schoolroom | Conference | Hollow square | U-shape | Reception | Banquet |
|---|---|---|---|---|---|---|---|---|
| Crystal Ballroom | ||||||||
| Crystal Ballroom | 7,020 | 800 | 500 | 100 | 160 | 120 | 700 | 550 |
| Crystal Salon A, B and C | 5,400 | 500 | 270 | 105 | 140 | 105 | 450 | 380 |
| Crystal Salon B, C and D | 5,400 | 580 | 360 | 90 | 100 | 90 | 500 | 350 |
| Crystal Ballroom Salon B and C | 3,600 | 350 | 190 | 60 | 65 | 60 | 300 | 280 |
| Crystal Ballroom Section A and B | 3,600 | 340 | 170 | 72 | 65 | 60 | 300 | 190 |
| Crystal Ballroom Section C and D | 3,600 | 180 | 90 | 50 | 55 | 50 | 150 | 280 |
| Crystal Foyer | 1,680 | 200 | ||||||
| Monarch Ballroom | ||||||||
| Monarch Ballroom | 3,150 | 250 | 200 | 86 | 86 | 78 | 310 | 260 |
| Monarch Ballroom Salon 1 | 735 | 60 | 45 | 24 | 25 | 25 | 50 | 50 |
| Monarch Ballroom Salon 2 | 735 | 60 | 45 | 24 | 28 | 25 | 50 | 50 |
| Monarch Ballroom Salon 3 | 546 | 40 | 24 | 18 | 26 | 24 | 30 | 30 |
| Monarch Ballroom Salon 4 | 546 | 40 | 24 | 18 | 25 | 20 | 30 | 30 |
| Irvine Ballroom | ||||||||
| Irvine Ballroom | 3,072 | 200 | 140 | 50 | 220 | 150 | ||
| Irvine Ballroom 1 | 1,632 | 100 | 70 | 30 | 40 | 30 | 125 | 70 |
| Irvine Ballroom 2 | 1,440 | 100 | 70 | 30 | 40 | 30 | 100 | 50 |
| Meeting rooms | ||||||||
| Catalina Ballroom | 1,908 | 200 | 114 | 25 | 50 | 50 | 150 | 120 |
| California Room | 650 | 35 | 24 | 26 | 26 | 26 | 30 | 24 |
| San Clemente | 456 | 40 | 24 | 30 | 10 | 20 | 30 | |
| Executive Boardroom | 338 | 10 | ||||||
| Outdoor | ||||||||
| Patio Terrace | 7,000 | 400 | 450 | 300 | ||||
Sources: Events at hilton.com; Encore locations. Retrieved October 25, 2026. A blank cell means the figure is not published.
Not an official Hilton website. Confirm every capacity with the hotel before contracting.
Wireless and podium mics with a PA tuned for the Patio Terrace.
Projection and bright LED displays sized to each room and its daylight.
Warm lighting and uplighting for dinners, receptions and award nights.
LED walls for general sessions, launches and award moments.
Cameras, switching and streaming for hybrid meetings and boardrooms.
We draw layouts from Hilton Irvine's own room specs and a site walk.
Weather-rated audio and lighting for terraces and outdoor spaces.
Itemized budgets for Hilton Irvine, with every line explained.
Our technicians work alongside the hotel's event team from load-in to strike.
Gear ships from our own Southern California warehouses.
We maintain our inventory from VUE, Shure, Barco, Avid, Yamaha and Sony.
We work across Orange County every week, from Irvine and Costa Mesa to Newport Beach and Anaheim.
We build walk-in loops, sponsor slides and award graphics sized to your screens.
Our itemized budgets match what is actually in the room.
We keep you updated clearly and consistently from proposal to strike.
Our proposals are drawn from the hotel's own room specs.
In 16 years and 2,113 events, including 85 concerts, our team has handled everything from early design to show day.
Learn More →We support conferences, galas and weddings, from the Crystal Ballroom to the Patio Terrace.
Learn More →In-house AV: Encore. Outside AV vendors like Above the Line can work alongside or instead, subject to hotel policy.
Above the Line, your AV partner at Hilton Irvine/Orange County Airport. Succeed Today →
Send your RFP or event plan for Hilton Irvine, and we'll return an itemized quote.
